Old Town Square is the historic heart of Prague, a broad cobbled space framed by Gothic church spires, Baroque façades and pastel townhouses. Once a medieval marketplace, it remains one of the city’s great gathering places, with the twin towers of the Church of Our Lady before Týn rising above its eastern side.
The square’s most famous attraction is the Prague Astronomical Clock, installed on the Old Town Hall in 1410. Crowds gather on the hour to watch its brief procession of apostles, but the view from the town hall tower is the better reward: a sweep of red roofs, church spires and the square below. In the centre stands a monument to religious reformer Jan Hus, while crosses in the pavement near the town hall mark the execution of 27 leaders of the Bohemian revolt in 1621.
Visit early in the morning to enjoy the architecture before tour groups fill the square, or arrive a few minutes before the hour if you want to see the clock in action. Christmas and Easter bring popular markets, though food and drinks can be expensive. Staroměstská metro station is a short walk away.