Heart of the town

The Old Town Hall was established in 1338 as the seat of the Old Town administration. The oldest part of the complex consists of a beautiful Gothic tower with a bay chapel and a unique astronomical clock – known as the Orloj – where, every hour between 9 am and 11 pm, the twelve apostles appear. The Gothic Revival eastern wing of the Town Hall was destroyed during the Prague Uprising on May 8, 1945 and was never rebuilt. The guided tour includes the historical halls, the tower and the underground areas.

The place in the old town is where all liveliness is. It’s the heart of all the tourism activities.
This is a must-see spectacle. There are lot of street performers here than any place else I've ever been to, and most of them are actually really good.
There are a lot of café and restaurant that serve authentic Czech food here. Avoid the stall near the horse cart place as they serve expensive food which you can get for cheaper in the cafes near the square.