Greece is a place to visit at least once in your life.
The ruins scattered in Athens gives you a glimpse of how things looked like back in time. Athenians like to chill outside when the sun goes down. They say Paris is the city of love, but I have never seen this many couples taking a stroll or chilling, laughing and kissing than in the capital of Greece.
Santorini island is like a dream. Its several colored beaches (from white to red to black sand) and its famous Oia are stunning. The 4 hours walk we did from Thera to Oia was one of the best memories I have. The view was a photoshopped postcard becoming real. It definitely the most romantic place I've ever been to.