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Prague Astronomical Clock
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Located in the Old Town of Prague, Czechia, the Prague Astronomical Clock was installed in 1410, making it the third-oldest astronomical clock in the world. It features a clock face with astronomical dials and an hourly show of moving figures, including the Twelve Apostles.
More about Prague Astronomical Clock
The clock's mechanical components, including the astronomical dial and the calendar dial, were constructed by clockmaker Mikuláš of Kadaň and mathematician Jan Šindel. The calendar dial, added in 1490, displays months and zodiac signs. The clock is mounted on the southern wall of the Old Town Hall. Visitors can view the hourly procession of the apostles daily, with public access through the Old Town Square.