In the old town square of Prague stands an enormous and extremely complex astronomical clock affixed to the wall of the old city hall. Built in 1410, it is one of the prime tourist features of the city. In addition to the time of day, it depicts the motion of the sun, moon, and stars. A figure of Death strikes the hour, whereupon one or more figures of the Twelve Apostles emerge from inside the clock, with all twelve appearing at noon. Local legend says that the clock was built in 1490, not 1410, by Hanus the clockmaker, and that he was blinded by the city elders after its completion so that no other city could boast such a magnificent timepiece. These legends also emphasize that Prague will suffer misfortune if the clock is neglected.