
Pražský orloj (Astronomical Clock)
Oldest operating medieval astronomical clock in the world mounted on Old Town Hall
Installed in 1410 by clockmaker Mikuláš of Kadaň and astronomer Jan Šindel. The moving Apostle figures and calendar dial were added in subsequent centuries.
A cosmic mechanical astrolabe calculating Babylonian time, Old Czech time, solar hours, and lunar phases in the heart of Old Town.
Myth holds that the city councillors blinded master clockmaker Hanuš so he could never build a more beautiful clock for another city; in revenge, he allegedly stopped the gears before dying.
Nearby Sacred Topography Nodes (Prague)
View All 50 →Staroměstské náměstí (Old Town Square)
Historic public square framed by Gothic twin-towered Týn Church and colorful Baroque palaces
Kostel Matky Boží před Týnem
Soaring 80-meter twin Gothic spires dominating the Old Town Square
Clam-Gallasův palác
High Baroque palace designed by Johann Bernhard Fischer von Erlach with Titan portals