Prague Astronomical Clock: A Medieval Marvel in the Heart of Old Town
Prague’s Astronomical Clock: More Than Just Timekeeping
Located on the Old Town Hall Tower, the Prague Astronomical Clock (Orloj) is one of the city’s most iconic landmarks and a top tourist attraction in the Czech Republic. Installed in 1410, it is the third-oldest astronomical clock in the world — and the oldest still in operation.
Every hour, crowds gather in Old Town Square to watch the clock’s famous “Walk of the Apostles,” a mechanical show featuring moving statues, a skeleton representing death, and the twelve apostles.
What Makes It Special?
Astronomical Dial: Shows the position of the sun and moon in the sky
Zodiac Ring: Represents the signs of the zodiac
Calendar Dial: Added in 1490, it features medallions for each month
Hourly Show: On the hour (9 AM – 11 PM), animated figures come to life
Location: Old Town Square, Prague 1
Best Time to Visit: Top of any hour between 9 AM and 11 PM
Admission: Viewing the clock is free; tower entry costs ~250 CZK
Pro Travel Tip
Arrive 10–15 minutes early to get a good viewing spot in front of the clock. Visit the Old Town Hall Tower for stunning panoramic views of Prague’s skyline.
The Prague Astronomical Clock is not just a beautiful piece of medieval craftsmanship — it’s a living symbol of the city’s history, science, and storytelling. Whether you’re visiting Prague for a day or a week, this world-famous clock is an essential stop.
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