Posters and Puzzles
Astronomical Clock in winter
The Prague Astronomical Clock or Prague Orloj is a medieval astronomical clock attached to the Old Town Hall in Prague.
The clock was first installed in 1410, making it the third-oldest astronomical clock in the world and the oldest clock still in operation.
The clock mechanism has three main components — the astronomical dial, representing the position of the Sun and Moon in the sky and displaying various astronomical details; statues of various Catholic saints stand on either side of the clock; "The Walk of the Apostles", an hourly show of moving Apostle figures and other sculptures, notably a figure of a skeleton that represents Death, striking the time; and a calendar dial with medallions representing the months.