The Old Town square features various architectural styles including the gothic church of Our Lady before Týn which has been the main church of this part of the city since the 14th century; the church’s towers are 80 m high. Prague Orloj is a medieval astronomical clock located on the Old Town Hall. The clock was first installed in 1410, making it the third-oldest astronomical clock in the world and the oldest one still in operation.
The baroque St. Nicolas church is another church located in the square, while the tower of the Old Town Hall offers a panoramic view of Old Town. An art museum of the Czech National Gallery is located in Kinsky Palace.
The square’s center is home to a statue of religious reformer Jan Hus who for his beliefs was burned at the stake in Constance. This led to the Hussite wars. The statue known as the Jan Hus memorial was erected on 6 July 1915 to mark the 500th anniversary of his death.
The Christmas Markets on the Old Town Square are the largest Christmas markets in the Czech Republic and are visited by hundreds of thousands of visitors from the Czech Republic and abroad.