When we come across Tyn Church in the Old City Square, we see the Astronomical Clock Tower. first hour by Kadan nikulas 15. it was built at the beginning of the century. 15 in 1410.it was built by Hunchun master, Professor at Charles University at the end of the century. 16. in the second half of the century, the clock became the present day by the master Taborsky. A clock that shows the location of the sun, the moon, and the earth. After the Astronomical Clock Tower is built, thousands of people flock to Prague to see the clock tower. The King blinded the eye of the master who built the clock tower in order to prevent the Astronomical Clock Tower from being built in another place. Usta commits suicide by leaving himself on the wire of the watch. The clock is broken and cannot be used for about 50 years. The skeleton, which is to the left of the clock at the beginning of each hour, opens two windows, and the passage of 12 Apostles starts from right to left. The show is complete with the buzzing of the rooster and the ringing of the bell.