This astronomical clock is located in the capital of the Czech Republic, specifically on the facade of the famous city hall. It dates back to the medieval era and was built in 1410 AD, and thus is the third oldest astronomical clock, still operating to this day, in the world. The most important characteristic of it is the windows that open their doors every hour (from eleven in the morning until nine in the evening) showing small statues embodying the disciples of Christ. The history of this watch has been linked to many tales and fairy tales that were passed down between generations. It was a source of ominousness in antiquity, and it became a source of optimism. It is one of the most important attractions that attract thousands of tourists to Prague from all over the world.