The 600th Anniversary of Prague's Astronomical Clock

The astronomical clock in Prague, a landmark in the architecturally rich city, celebrated its 600th anniversary with a remarkable mapped animation on its face. The clock, called the Orloj, is mounted on the southern wall of Old Town City Hall.

The Orloj has three main components: the astronomical dial, representing the position of the Sun and Moon in the sky and displaying various astronomical details; "The Walk of the Apostles", a clockwork hourly show of figures of the Apostles and other moving sculptures; and a calendar dial with medallions representing the months.  The animation on the clock tower brings the components and Prague's history to life. Continued...

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