English
EUR
Language
Currency
Contents

Fun facts about the Prague Astronomical Clock

The Prague Astronomical Clock, or Prague Orloj, is one of the oldest and most intricate astronomical clocks, installed in 1410. Its fascinating history, combined with intriguing fun facts, makes it a must-see, offering a unique and exciting experience for visitors.

Fun facts about the Prague Astronomical Clock

Legend has it that the city councilors blinded Hanuš, the architect of the Prague Astronomical Clock, to prevent him from creating an even more beautiful clock than the one we see today!

Though the Prague Astronomical Clock has undergone numerous repairs, about 75% of its parts remain original from the 15th century. However, some renovations have sparked controversy. In 2018, artist Stanislav Jirčík recreated the calendar dial based on Josef Mánes' original paintings, but the heritage group Club for Old Prague discovered significant changes in the zodiac paintings. This led to a complaint with the Czech Ministry of Culture in 2022, creating a scandal.

Legend says if the clock stops at the skeleton on the Prague Astronomical Clock, it  signals bad times for the Czech nation. Only a boy born on New Year’s night can stop the curse by racing from Týn Church to the Town Hall before the clock's final strike, breaking the skeleton's evil power and saving the land.

On 9 October 2010, the Orloj celebrated its 600th anniversary with a spectacular light show projected onto the clock tower. Using two projectors, animated videos depicted the clock's construction, destruction, and reconstruction, revealing its inner workings and iconic figures. The visuals interacted with the tower's architecture, showcasing rain rolling off the arch and illustrating the passage of time with shifting shadows.

A replica of the Prague Astronomical Clock can be found in the town of Kadaň, Northwest Bohemia. This version is twice the size of the original, measuring over five meters tall and weighing more than five tons. Unlike the original, the Kadaň clock is a metal sculpture without any moving parts. Its design features open sides and a back, allowing visitors to view the inner mechanism up close.

On its 605th anniversary, the Prague Astronomical Clock, also known as the Prague Orloj, was honored with a special Google Doodle featured on the homepage. The Doodle celebrated its historical significance, highlighting its intricate design and engineering, which includes moving figures and a display of astronomical and calendrical information.

























Book your Prague Astronomical Clock tickets

Prague Astronomical Clock Tower Tickets
Free cancellation
Instant confirmation
Mobile ticket
Flexible duration
Audio guide
More details
Combo (Save 8%): Prague Castle + Astronomical Clock Tower Tickets
Free cancellation
Instant confirmation
Mobile ticket
Audio guide
More details
from
€47.75
Prague Astronomical Clock, Old Town & Jewish Quarter Guided Tour
Free cancellation
Mobile ticket
1 hr. 30 min. - 3 hr.
Guided tour
More details
Skip-the-Line Combo: Prague Castle, National Museum & Astronomical Clock
Free cancellation
Instant confirmation
Mobile ticket
Flexible duration
More details
Prague Old Town, Charles Bridge & Prague Castle Guided Walking Tour
Free cancellation
Instant confirmation
Mobile ticket
3 hr.
Guided tour
More details
Combo (Save 5%): Astronomical Clock + 1 Hour Panoramic Cruise Tickets
Free cancellation
Instant confirmation
Mobile ticket
Audio guide
More details
from
€36.10
Skip-the-Line Combo: Prague Castle, Jewish Town, & Astronomical Clock
Free cancellation
Instant confirmation
Mobile ticket
Flexible duration
More details

Frequently asked questions about the Prague Astronomical Clock

When was the Prague Astronomical Clock installed and why?

The Prague Astronomical Clock was installed in the year 1410. The Gothic-style tower, built in the 14th century to alert townsfolk of dangers like fires and invasions, was later connected to the Old Town Hall. In the early 15th century, the clock and astronomical dial were added, enhancing its function.

Who built the Prague Astronomical Clock?

The Prague Astronomical Clock was built by the clockmaker Mikuláš of Kadaň and the mathematician and astronomer Jan Šindel.

Does the Prague Astronomical Clock still tell time?

Yes, the Prague Astronomical Clock, also known as the Prague Orloj, still tells time. The clock not only shows the time but also tracks the positions of celestial bodies, phases of the moon, and the zodiac signs. 

What do the astronomical figures on the Clock signify?

The astronomical figures on the Prague Astronomical Clock represent medieval views of time and the cosmos. They include the zodiac signs, which track the sun’s position, and figures like the moon phases, the sun’s path, and symbolic statues, such as Death and the apostles, highlighting life's cycles and time's passage.

What’s inside the Prague Astronomical Clock?

Inside the Prague Astronomical Clock, intricate gears and mechanisms drive the astronomical dial, zodiac signs, and the hourly procession of apostles, while also powering the striking bell.

Why was the Clock built?

The Gothic-style tower, built in the 14th century to alert townsfolk of dangers like fires and invasions, was later connected to the Old Town Hall. In the early 15th century, the clock and astronomical dial were added, enhancing its function.