The astronomical clock on the tower of the old city hall in the old city of Prague, which embodies the ancient luxury and refinement of European style, is considered to be the most beautiful species in the world. Its maker also lost his eyes because of this beauty, and the craftsmanship of ingenuity, elaboration and beauty was lost. Astronomical clocks are divided into two layers. There are exquisite patterns on the surface and on the pointer. Each pattern has a symbolic purpose. Whether it's cloudy or sunny, it's on time every day. Each of the two small doors on time opened, and the twelve disciples appeared in turn. Without the help of equipment, the people downstairs could not see clearly. But when it comes to newspapers, there are still crowds downstairs. Buy a 130 yuan ticket in the building next to the tower to climb it. Take the elevator to the third floor, along the spiral escalator, see the historical picture of the astronomical clock hanging along the way to the viewing platform, you can get a full view of the old Plaza in Prague.