Prague Astronomical Clock
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Prague Astronomical Clock

Staroměstské nám. 1, 110 00 Staré Město
50.0870, 14.4207
AI Tour Guide

Historical Significance

The Prague Astronomical Clock, or Orloj, was first installed in 1410, making it the oldest astronomical clock still in operation today. It was crafted by clockmaker Mikuláš of Kadaň and Jan Šindel, a professor of mathematics and astronomy at Charles University. Over the centuries, the clock has seen numerous additions, including the moving statues of the Apostles and the calendar dial painted by Josef Mánes in the 19th century. According to a grim local legend, the city councillors blinded the master clockmaker Hanuš so that he could never replicate his masterpiece elsewhere. In retaliation, he supposedly reached into the gears and stopped the clock, cursing it for decades. While historical records show Hanuš was real, the blinding story is likely a myth, though the clock did face several periods of disrepair and near-destruction. The most significant threat occurred in May 1945, during the Prague Uprising, when the Old Town Hall was set on fire by retreating Nazi forces. The wooden statues and the clock's mechanism suffered severe damage, but thanks to the heroic efforts of the local community and skilled restorers, the clock was repaired and returned to its former glory by 1948, preserving a vital piece of Czech heritage.

Did you know?

"The Orloj is the only clock in the world that measures Babylonian time, where the length of an hour changes depending on the season, being longer in summer and shorter in winter."

Tour Guide Narration

Welcome to Old Town Square! You are standing before the Orloj, a 600-year-old marvel of medieval engineering. Every hour, crowds gather to witness the 'Walk of the Apostles' as the figures emerge from the small windows above. Notice the skeleton pulling the bell cord—he represents Death, reminding us of our mortality. This clock doesn't just tell the time; it tracks the position of the sun, the phases of the moon, and even the zodiac signs. Listen for the golden rooster's crow at the end of the show!

Visitor Tips

  • 1
    Arrive at the square at least 15 minutes before the top of the hour to secure a good viewing spot.
  • 2
    Be wary of pickpockets who often target the distracted crowds during the hourly show.
  • 3
    Purchase a ticket to climb the Old Town Hall tower for a stunning bird's-eye view of the clock and the square.
  • 4
    Visit early in the morning or late at night to enjoy the clock's intricate details without the heavy crowds.

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