The main and the most famous square of Venice is always bustling with life. It is surrounded by many famous sights such as the St Mark's Basilica, dominating the square with its five domes and detailed exterior decoration.
There are other buildings representing different architectural styles – the Doge's Palace as a fine example of Gothic architecture or the beautiful Clock Tower from the Renaissance period.
If you want to see the square from above, there is no better way than to climb to the top of the Campanile. The viewing platform offers great views of the square including the mysterious white lines drawn on its pavement. They were probably used to mark the places for market stalls.
Wikipedia https://en.wikipedia.org/wiki/Piazza_San_Marco
Address Piazza San Marco, 30124 Venice, Italy
Coordinates 45°26'2.909" N 12°20'18.358" E