Osaka Castle Megaliths: by Lost Ancient high-tech or Human Ingenuity?
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- เผยแพร่เมื่อ 4 ก.พ. 2025
- #lostcivilizations #megalithic #osaka
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In this video I discuss the massive stone blocks at the Osaka castle in Japan. The original Osaka castle was built in the late 16th century. It was destroyed during the war and then rebuilt under the new ruling shogun Tokugawa Ieyasu in the 1620s.
The present-day castle with its awe-inspiring megaliths were documented to be constructed and installed during the decade-long reconstruction in the first half of the 17th century. Among these huge stone blocks, the octopus stone is the largest and most famous. It measures 5.5×11.7 meters (18’x38’) and is estimated to weigh about 108 tons. There are at least 10 such big megaliths at the Osaka castle.
Please note these megaliths are granite, one of the hardest rocks. Researchers found that most of these giant stone blocks were sourced from quarries on two islands which are over 110km or 68 miles away from Osaka.
How did ancient Japanese cut these granite stones, transport and position them on the construction site 400 years ago? It’s an incredible feat. So much so it prompts the suspicion on whether these megaliths were created by lost ancient high technology from a previous advanced civilization.
I did some research and found that there are other mysteries and lesser-known facts about these impressive Osaka megaliths which shine a light on how they were quarried, shaped and transported. Were these huge stone blocks produced by lost ancient high-tech or human ingenuity?
Here are my findings.
References:
www.gov-online...
dailyportalz.j...
www.city.okaya...
kojodan.jp/cas...
shirobito.jp/a...
ameblo.jp/osal...
en.wikipedia.o...
Photos and film are from online sources.
I really like how you follow the evidence. Sometimes the evidence says it is ancient technology and sometimes the evidence is that it is explainable. No matter what the evidence you report the results as they are.
Thank you! 😊
Well said.
Always learning something new here. Have a good weekend everyone!
Glad to hear it! Thank you for the support!
Much love. Your work is exceptional, thank you.
Thank you ♥
The fact that there are only a very few of the massive stones that are less than a metre thick should explain how amazingly difficult it is to split a 12x5 Metre, less than 3/4 of a metre thick. Even granite would rarely have the structural integrity to support that as one slab. That doesnt even speak to how difficult it is to transport and place something that fragile. The octopus stone, at 12x5x1 Metres is around 170 Tons.
Transport the whole boulder and split onsite ? Just a guess
@@matthewdudael1931 Maybe, if they had the means to transport around 600-700 tons, 70 miles. I guess it's doable somehow.
Tina, the one video you made explaining the frozen woolly mammoth mystery was a real eye opener for me..
Your take on how avalanches were the cause on just how those mammouths were found frozen with plant life still in their mouth/stomach was very compelling and I think as close to the truth as one can get..
If some wide spread catastrophic event did happen there should be 10s of 1000s of woolly mammoths but only a few have been found and as you pointed out, near or in mountain areas..
Great Work!!!
Thank you! So glad to hear that :-)
Thank you for a great presentation on the Osaka Castle stones.
I always learn something new from your nicely thoughtful stories. Thanks again.
Glad to hear that - thank you for the support!
Your videos are top tier!
Thank you ♥
The Ancients flexed by who could move the biggest stone. But why has EVERY culture on the entire planet forgot how we did it?
... no one's ever forgotten how to do this cultures have been moving large stones for thousands and thousands of years and they continue to do it to this day. We literally are building structures that are nearly a kilometer tall.
@@LadyBits2023 building towers from smaller pieces of steel and glass is not comparable to moving 100 ton+ granite blocks with no gas motors across of 100's of miles of unpaved or nonexistant roads.
@@LadyBits2023you have no idea wtf you are taking about we have not built with huge stones since the Roman times and even the Roman’s mainly built with stones less than 20 tons.
Maube because the one who didi it desapeared...
Nothing says that stones were installed in XVI centuries...
Hi Tina, Stephen here,
everybody knows about South America and Egypt etc. but this subject is absolutely incredible. Everybody who is not heard of Osaka Castle, for me, it’s more amazing than all the others. And what is more curious for me, could there be an ancient relationship between them all; amazing?
Even so, it’s not about how heavy they were for me to think about, But it’s like trying to get a perfect patty of butter with a hot butter knife and a frozen cube of butter.
I learned a lot. Thank you Tina! You are the coolest.
Glad it was helpful!
Tina, I'm always so very impressed by you. You have such positive energy, a real passion for discovery and education, and such an overall beautiful spirit. You are so special, and I hope the people around you never make you forget that. Big hug and high-five from NY!
I'm always stunned at the beauty of ancient Japanese architecture.
400 years ago they had steel tools, so it was easy to use wedges to spilt rocks, and it was all documented too. But 5000 years ago and before? The really ancient megaliths have no wedge holes or tool marks anywhere (except where modern reconstruction or stone pillaging has taken place). There are no wedge holes in the ancient quarries either (except from 'recent' quarrying using steel tools) . So for me, the really ancient stonework still remains a mystery.
In 5000 years, stones weather quite a bit. Such marks are always on the surface.
@@ProfessorJayTee Most of the monuments and quarries were buried under rubble and earth for most of the time. Only those that have been exposed are weathered. Check out the Aswan Quarry etc.
Great show. Greetings from Australia.
Thanks for watching! Hope you will enjoy my other videos too.
Thanks for the informative presentation, Tina! It was genuinely enjoyable!
Glad you enjoyed it! ♥ Thank you!
Hi Tina.
I really like your channel, especially for the immense research work you do for each video. These are topics that I know and have been interested in for 40 years and that is why I am sure that what I say is true. I also really like it for the rigor of the photos: you do not post sensationalist photos generated by AI.
There is an important issue that has never been addressed or investigated and, honestly, I think there is something interesting. Let me explain: ancient megalithic constructions are so large and old that with the passage of time only ruins remain and it is very difficult to interpret them. The larger and older they are, the greater the difficulty, but that difficulty increases when these constructions seem to have been destroyed by enormous forces. In this case, recognizing and interpreting them becomes almost impossible, but the remains are visible.
There is a large stone formation, which everyone has always interpreted as a natural outcrop from underground, but because of where it is, I think everyone is wrong.
I am referring to the formation known as "las rodaderas" (the wheels) which is located in a privileged place: right in front of the wall of saqsaywaman, on a promontory, dominating the entire construction.
Using the aerial photographs from Google Maps and adding a little imagination, it can be intuited that at the top of the hill there were 3 enormous statues, with a human appearance, which collapsed towards the east. You can almost see the torsos of these figures and their heads. In close-up photos of these stones you can also see things that I am sure you will be able to interpret better than I.
It is a matter that keeps me up at night, but to obtain good images and do good research work you would have to go to Peru, but you have more resources and more drive than many people I know.
And the Russian megastructure that has been mentioned is that of Khara-Hora, very interesting for the cave and the surroundings. I believe that there is a pyramid-shaped construction there so old that it is impossible to see it with the naked eye.
It must be authentic because all its discoverers and the people who were investigating it have died in strange circumstances.
Greetings from Spain.
I agree that the quarrying, cutting and placement of such megalith stones are incredible and so is their overland transport. But their transport by sea/waterway has special advantages. Putting the load inside or on top of a boat is difficult but not impossible, but does require enormous ships to float such enormous weight OVER water.
However, if the stone load is UNDER the water, its weight is reduced by the weight of the water it displaces. This has great advantages: 1) the necessary floatation can be provided by simple wooden structures (e.g., log rafts) near the water surface with the stone(s) suspended underneath by ropes. Alternatively, even better floatation could be provided by air-filled bags (e.g., made from animal skins) with ropes to suspend the load underwater. 2) In either case, the floatation structure need not be very rigid or strong because their weight is also lessened by the displaced water which, for floatation, must be more than their structural weight. 3) When unloaded, such floatation structures are easily moved as when going back for another heavy load.
The end result is a mostly underwater raft which can be easily moved via tow ropes pulled by any available means of aquatic propulsion including land based tow ropes. I should also mention that once a heavy load is moving, its momentum will tend to keep it moving, even in water. The only obvious limitation is that the water must be deep enough for the underwater load to clear the bottom. If you want to use this much easier transport method, finding deeper water or dredging a reusable deep channel isn't such a big deal.
Hi Tina
Another great episode. I always thought Japan's stonework was megalithic but you taught me the plausible truth with accurate research and great visuals added of the more recent history and culture of Japan and the communal effort involved. Fascinating. Love your work and love your Channel!
The portrayal of traditional methods in your video was significantly improved, despite some minor technical inaccuracies in the descriptions. It is important to note that these methods are not considered "lost technology," as they are well-understood by practitioners who continue to utilize them. I appreciate this video and your dedication to this subject matter. Thank you...
The.... 蛸石... " The Octopus Stone" - in the foundation of the Osaka Castle at a weighs 120 tons placed there (and documented by humans, is one of the foundational anchors in teaching others what humans can do with traditional skills. Your detailing of the "wedge splitting" methods (not feather and plug at all in this case) is excellent!
You are mistaken in thinking that these are simply "just veneers." These large slabs are essential for the structural integrity of the seismically active region. The "infill" located behind them complements the massive slabs. True stonework veneers are more about aesthetics than structure...these components like the "octopuse stone" (et al) are vital to the structural integrity of the walls...
" high-tech or human ingenuity? "
They are almost one and the same thing. There is no (human) hi - tech, without human ingenuity.
Many parts from pre flood still exist.
At gobbekli teppe, 13000 years ago, the ground is covered with smooth mortar, Terrazzo. Many pilars are concrete
Mageliths and Kofuns are of Jomon culture, before modern Japanese migrated into Japanese Island beginning 2000 years ago.
Yayoi's took over Jomon culture and repurposed pre-exiting structures.
I just discovered your channel, I don't know much about megalithic structures in Japan yet.
I had the opportunity to visit different places with megalithic structures and worked or talked with professors or professionals stones workers.
First, thank you for making videos.
Second, we always have to keep in mind that we are speculating on how it was made.
My understanding is that megalithic sites are very ancient and most of the time went through different phases of construction by different people and different techniques.
For example the biggest stones on the castle could have been splits from a previous megalithic blocks that was already in place, made by ancient civilization.
I see 2 options, if blocks are carved on site it required very advance machines, and it is very dangerous to move them too.
Or blocks are made by men, they are artificial, like the Roman mortar used to build the aqueducts. It also requires advanced knowledge.
I spent time with professor Davidovits back in France, he s a world expert en artificial stones called geopolymer.
Your point on making big stones to impress people is very important. I do believe these ancient civilizations were very aware of the importance of building beautiful and harmonious structures.
Also we have to keep in mind that conditions were different in the old time, level of oceans were not so high and maybe people were also bigger. Many found were made in France and in the U.S. with very tall skeletons like 3m in size.
Anyway thanks again for your work and I am going to watch more of your videos.
Take care.
The wall shown at 6:53 reminds me of the Cuzco megalithic walls. Apparently, this way of fitting blocks together offers better resistance to earthquakes. So, you offer a very good explanation for the cutting and transportation of the blocks, but the fitting and assembling is still a mystery to me. Especially if you look at the wall at 6:53, which seems to be of a higher standard of construction, with tighter tolerances.
I'll discuss these polygonal walls in my next video :-)
@@CuriousBeingbyTina Thank you!
Looking forward to watching your next video on polygonal masonry. Just visited koya mountain and discovered there some very beautiful polygonal walls, not massive like at the tokyo imperial palace but perfectly executed with intriguing design, and so tight.
At the tokyo imperial palace, you clearly see three types of megalithic walls: the big rectangular blocs, the polygonal blocs, not perfectly adjusted and the tight perfectly adjusted "polygonal" stones...with some stones having 7-8 angles.
You clearly see 3 different levels of skill
Interesting - thank you for sharing with me. I'm working on the video of polygonal walls in Japan :-)
@@CuriousBeingbyTina very cool!
your channel always shows details nobody else does. I always thought these structural techniques were identical to the structures in peru, but they are quite a bit different. They only look similar from a distance. Please do more videos!
Glad you like my videos! Thank you very much for the support :-)
So the previous ancient high-tech civilization taught the Japanese and others around the world the feather and wedge stone splitting method? Makes sense.
I guess that civilization also taught the technic for building aqueducts. It's all connected. Maybe that is what's behind the handbags, knowledge transfer.
Similar in Israel Jerusalem, at the mount, they have these very massive blocks that seems to have been found by people and built upon.
This was very informative and well presented. 👍
Thank you. Hope you will enjoy my other videos too.
These castles are not only strong but beautiful thank you Tina ❤️
Sure they are 😊
i was watching a vid about a huge underground structure in russia claimed to be megalithic, very odd shape too, maybe see if you can find something out about that.take it easy tina
Thank you - I'll look it up :-)
Funny, I have a video about that next in my queue 😅
The channel is Universe Inside You
Very nice Tina. You must see Osaka castle someday. Those huge rocks are incredible!
Hopely I'll visit there sooner than later!
first of your videos i've seen for ages , for some reason i'm not getting notified
Welcome back! Please click on the bell button for notification :-)
very good has always thank you
I would like to see you do a collaboration with Ben from UnchartedX or Jimmy from Bright Insight to bring more objective thinking to their conclusions, and to bring more popularity to your channel. You definitely deserve more subscribers.
Thank you - I appreciate it. I hope I can do collaboration with Ben or Jimmy.
Good stuff. 👍
Thanks for watching! Hope you will enjoy my other videos too.
Great video! Will you do something about Atlantis?
I might :-)
@@CuriousBeingbyTina 👍 good .
Atlantis is over. There's not much you can do about it.
Solid research and reporting Tina. Thanks for demystifying the construction. It is still very impressive! Have you heard of the 800 ton stone sky-ship in Masuda Japan? I would be interested in a video report on it. ;-)
Thank you! I agree the rock ship monolith is very impressive. I'll see if I can find more about it :-)
Good vid siski
good ole human ingenuity.....can't beat it!
Large quadrangular blocks are completely different from massive veneer blocks. The relative dimensions of each are unrelated to each other. The means to transport large quadrangular building blocks would not apply to transporting enormous flat veneer slabs.
It's wise to assume that how that was done is not known... including how to handle such enormous weight on land. What kind of wheels could withstand such loads? If dragged on wooden beams they had to use an enormous amount of lubricant or slime of some kind... but it would have been possible.
Awesome Thanks Tina 🙏🌻🐝❤️
Thanks for watching! ♥
Aw girl, this one wasn’t hard
For you to figure out-at all! We gotta get you a better challenge 👏 😂 good job, as always ❤
Thank you for the support!
In a country frequented by earthquakes, castle walls were better solidified to maintain authority. Now a free park. ☺
Great job.
Love from the U.S.
Cool video thanks.
Thank you for the education. What I find fascinating and interesting is the small stone the Masons place surrounded by the large stones. This method is found all over the world including Easter Island. This method is also found in the modern foundation of the Biltmore Castle in Asheville, NC built in 1907. It is an earthquake proof method. Like our skyscrapers today, this technology must have been shared and passed down. I do not believe it's a coincidence this method is seen all over the world.
Interesting, thank you!
very nice presentation
Thank you - hope you will enjoy my other videos too.
Many of us can get overly enthusiastic toward attributing ancient stoneworks to advanced prehistoric builders.
Still many others err to the side of clinging to official archaeological acedemic narratives, in the face of contrary evidence.
You're helping us sort this stuff out, so thank you Tina!
Thank you - I really appreciate your support ♥
Good teaching as always !! I suggest you update your X account with more of your videos 😇
Thank you - I'll do some updates on X.
Its ok to call it twitter, the bird's not dead, just in the xhitter.
Thank you 🙂
Wow amazing 👍️
Thank you!
Thank you!
Your amazing!
非常有深度的頻道🎉🎉🎉
謝謝支持 :-)
thank u Tina 🌹🌹💕💕🎶🎶
Interesting. How are you, Tina?
All good. Hope you are well too.
Не согласен, часть приведенных фото показывают мегалиты без следов, четки и ровные края.
Часть действительно видно что ручной труд, а часть нет.
В этот раз автор свалил все в одну кучу
На двух самых больших мегалитах (два самых сложных для добычи и транспортировки) есть следы клина. Если эти два были разрезаны/расколоты методом пера и клина, то как мы можем оправдать то, что гораздо меньшие камни были разрезаны с помощью древних высоких технологий? Также каменщик мог бы удалить следы клина, если бы это было необходимо.
Across the planet we have a spectrum of stone construction from the obviously human to the megalithic and obviously superhuman. Has anyone analysed the chemical composition of the largest stones at Osaka Castle or attempted to dissolve them in acid - they may be synthetic like many of the stones in Peru.
The problems I have with Osaka castle are many. The outer walls are 100 feet tall, far beyond anything needed for a medieval defensive structure. The complicated surrounding moat is 30 feet wide and 30 feet deep, also far beyond what is necessary. The construction is from an estimated 1 million granite blocks avaraging 2 tons each. Then, in the middle was a wooden castle that was susceptible to fire attack and burned down multiple times. When I see the similar era of European, Indian, and Chinese fortifications they make sense, but I don't understand why Japanese castles should be both overbuilt and extremely vulnerable.
In the video it was explained that there was a period that the architecture was a show of feat, status, strength, not necessarily practical for anything.
I might have to look this up again Tina, but the last polygonal construction I have heard of is a Dutch colonial fort in the 1500's. It might rub back to the 1577 earthquake at the time simply eradicating anyone near the shore. (The Lisbon quake) Maybe it's more about the stupid positions we put ourselves in. Gain vast knowledge of stonework only to have it beaten out of us by greed and nature.
Wow!
The problem is modern people only see stone madonry in relation to modern tools and the modern mind set of completing public works as quickly af possible.
All ancient societies had different mind sets from us in the early 21st century. They were not driven by dollars or elections or annual public budget cycles. They had other prioritities based on religion, projection of a ruler's power, and religious devotion.
Thanks
I would guess those megaliths were there a long, long time before that...
I don´t think they tried to make it the most dificult way, I think whoever made it it was easy for them
Sorry…, wrong.
And also wrong re the Oya Caves.
Modern humans claiming what they found..& what they still dont understand to this day.
I have my own pics from earlier this month when at Oya & Mt. Nokogiriyama.
I can share pics if you like
Leave it to an architect to combine simple technology, culture and motivation to explain an enigma 😂. One more mystery conspiracy bubble popped!
Excellent logic and a great job…… say…do you do messed up governments? Just asking for a friend.
Take care.
Fox out
Thank you Fox! Glad you enjoyed it 😊
Btw messed up governments are way more complicated...
Either way, it comes down to human ingenuity, but perhaps a few more options exist
The reason the collective memory of such large blocks were moved from Japan to Baalbek to Giza to Newgrange etc was lost to undocumented cataclysms in our Realm. This might also factor in the possibility there was no sea for them to traverse with the blocks, as perhaps this building is older than it's been dated to be
Don't laugh, but you guys have sumos out there, and I know it might seem ridiculous, but I am sure one of those guys is worth 3/4 times a normal person's strength
Having said all this, I do believe they had a totally different method than what we've theorised, and I am sorry to be That Guy, but it was probably some kind of ant-gravity technology, as obvious as that might sound. One thing is for sure, this is only a mystery to us mortals in The Realm. The knowledge has been preserved well out of our reach for a long time and will continue to be that way. Thanks!
I am of the belief that the giant stone blocks are made from ancient cement.
Have you been working on your English pronunciation? If so it shows.
Human ingenuity = ancient technology.
The Amish did it, you know all got together like a barn build.
How dare you! More of the same great stuff! :P
⚠ Living beings do learn by watching others. How would progressing anthropoids get the idea of 'building something' with megalithic stones!
dont overthink it. It's poured concrete
those stones only look big compared with Curious Being.she isnt even as tall as a pencil and only just taller than a pack of playing cards
God that face filter that you use is absolutely horrifying🤣
17 th Century isn’t ancient though, right?!
These aren't that big.
Neither are yours 😉
@@kateapple1 If I had balls that big, I would be more sad than happy.
You have mischaracterized the purpose served by the wedge marks along the edges. They were NOT for splitting anything other than the length and height edges, not the depth thickness. I do not believe that those mega-size thin blocks are granite. They are probably some kind of sedimentary stone that can easily be split laterally along its boundary layers. Splitting granite that thin and wide would, if possible to do, result in a slab that would be unpredictably fragile and prone to cracking apart.
It's not very difficult to carry those rock slabs, as long as it's carried by boat, and the vast area of Osaka was covered by rivers and canals.
And that was why old cities like Osaka and Edo(now it's called Tokyo), cities covered with canals and it was heavily dependent on logistics on canals, people were suffering from malaria 🦟
there were ideal water places for mosquito for hatching. 😅
Nowadays most of those canals are covered and going underground.
.
Why do you have the same manner of speaking as that Indian guy who does similar videos........it literally sounds like your trying to imitate his speech patterns..
There are drawings of 100s of men pulling on ropes to lift these stones into position. No mystery here. your post is rubbish.
You obviously didn't watch the video at all.
Yet no documentation. I get maybe it got destoryed at some point. People say the same thing about ancient giza pyramids. Yet again. Where is the documentation. The blue prints. Schematics. Planning. Only some painting they drew. Get real.
很好！