There is a world-famous medieval astronomical clock on the wall of the Old Town Hall south of Prague Old Town Square. It was made in 1410 by two royal watchmakers and a university professor of astronomy. It is mainly composed of "astronomical dial", "Jesus and the Twelve Believers", "calendar clock disk" three parts. Modeling has classical beauty. It is not only ornamental but also interesting. It can be called a masterpiece. Especially recommended to spend 250 Czech kronor about 72 yuan by elevator to climb up the astronomical clock "Old Town Hall Tower" from the outside to see Chutianshu, Prague beautiful scenery. The square building under your feet presents a red ocean, which is like falling into the world of building blocks fairy tales. All the pictures are postcards. You will regret not coming here.