Walking on 57th Street

There are so many major crosstown streets in Manhattan that it's difficult to remember them all. The highest one of any importance is 125th Street (or 145th Street if you like trains or live up there), which becomes the Triborough Bridge and is also where there is a fault line. It is also where the only elevated line in Manhattan is: the (1) at 125th Street and north of Dyckman Street, since the dip in terrain means that it was better to build it as an elevated structure that does not change height above sea level.
There is 110th Street, which is the north end of Central Park, and several streets cross Central Park such as 97th Street, 86th Street, 79th Street, and 66th Street. The next big one is 59th Street, which is both the south end of Central Park and is the start of Midtown. This is 57th Street, and it really is more hidden away compared to both 59th St other streets not far below it, such as 50th and 47th Streets and the most well-known of them all: 42nd Street. This is arguably the Main Street for NYC besides Broadway and 5th Avenue, and needs no introduction or explanation. I did a video on 42nd Street, too, showing how even on foot, I was still bobbing and weaving through pedestrian traffic because this is NYC.
34th Street is the next one, but 33rd Street is also a street of significance. MSG and Penn Station are both on 33rd Street, while it is the Empire State Building that is on 34th Street. Next down is 23rd Street, and then 14th Street. This is where Manhattan's otherwise regular grid starts to break down because Greenwich Village, having already been built up by 1811 when the Commission published its grid plan, was allowed to keep its existing street layout. Once Houstoun Street is reached, the 1811 plan ends, and the organic layout that the city has been growing since it was first settled in the 1600s begins. Canal Street is probably one of the more significant streets, but most notable is obviously Wall Street. There is even a Broad Street that ends at Wall Street. Obviously, it is nowhere near as significant as the other Broad Street in the City of Throwing Snowballs at Santa.