Skip to main content
Astronomical Clock
Monument

Astronomical Clock

📍 Praha 1, Prague🏗 1410-01-01🏛 part of national cultural heritage site in the Czech Republic

The Prague Astronomical Clock is a medieval timepiece installed in 1410, anchored to the Old Town Hall on the southern wall facing Old Town Square. Its three-part mechanism is the heart of the clock: an astronomical dial showing the Sun and Moon’s positions and other celestial details; a calendar dial with medallions for the months; and the famous hourly performance, “The Walk of the Apostles,” with moving figures including a skeletal Death that tolls the hour. The clock’s original builders were Mikuláš of Kadaň, a horologist, and Jan Šindel, a university professor of mathematics and astronomy, with the earliest documented mention dated 9 October 1410. Around 1490, the calendar dial and Gothic sculptures were added, enriching the facade of the Old Town Hall. Today, the Orloj stands as a symbol of Prague’s long-rooted scientific knowledge and its cultural heritage. …

— WayWhisper audio guide

AI-generated from open data and cross-checked, with review where noted. How we write narrations

🎧 Listen in WayWhisperOfficial website ↗
Listen on the go

Hear the full story — and hundreds more — while walking through Prague.

Open WayWhisper

More in Prague