The Clementinum Astronomical Tower and Baroque Library

Astronomická věž a Barokní knihovna Klementinum

The Clementinum is not only Prague’s second-largest building complex, after Prague Castle, but also a site rich in history and culture.

Notable figures such as Albert Einstein lectured here, while Wolfgang Amadeus Mozart performed within its halls. Among its many treasures, the Clementinum houses what many regard as the most beautiful library in the world.

Within its 200,000 rare books are gems like Kepler’s works, including a handwritten dedication to his colleagues at Prague University.

Founded by Jesuits in 1556, the Clementinum takes its name from the former Dominican Monastery of St. Clement, established in 1227. Since 1775, it has been a center of meteorological research, boasting the longest continuous meteorological data collection series in Europe.
Discover the Clementinum

A guided tour offers a unique experience, taking visitors through parts of the former Jesuit college. The route includes the renowned Baroque Library, celebrated as one of the most beautiful libraries in the world. While entry into the library itself is not permitted, visitors can admire its splendor from outside.

Next, explore the Meridian Hall, featuring historic astronomical instruments on the second floor of the Astronomical Tower. For over 300 years, a giant statue of Atlas bearing a sky full of stars has gazed down from the tower’s peak. This tower has seen many illustrious visitors, including Mozart himself, and continues to offer a breathtaking view of Prague.

The highlight of the tour is the climb to the gallery, which provides access to the observation point of the longest-running meteorological station in the Czech Republic.
Ziyaretçi Bilgileri
Açılış saatleri

January—March: 10:00—18:00 (Mon—Sun)
April—September: 09:00—20:00 (Mon—Sun)
October—December: 09:00—19:00 (Mon—Sun)

Not: The Clementinum will be closed from October 7th to October 10th, 2024, for operational reasons.

kabul

Basic Ticket: 380 CZK
Reduced Ticket: 230 CZK (Available for children aged 6-15, students under 26, seniors over 65, and people with disabilities)
Family Ticket: 810 CZK (Valid for 2 adults and up to 4 children)

Special Discounts:

50% off the first two morning tours (09:00 in English, 09:30 in Czech) daily.
10% off admission when purchasing eTickets online.

Multi-Ticket “9 Buildings in 365 Days”:

Adults: 990 CZK
Reduced: 690 CZK

Children under 5 years and persons with a ZTP/P card (including one companion) can enter for free.

Bonus Tip:
Receive a 50 CZK discount on a 24-hour ticket for historic Tram 42 with the purchase of any ticket (except group, school tickets, or special events). Present your Clementinum ticket on the same day for the discount, available only via credit card. Additionally, you can claim a 20% discount for admission to one of the towers managed by the PCT while your ticket is valid (excludes Multi-Ticket).

Ulaşılabilirlik

Please note that the Clementinum tour involves several staircases and may pose challenges for visitors with mobility issues. The site is not wheelchair accessible, and no elevator is available. Visitors must climb 172 steps to reach the circular viewing balcony at a height of 52 meters. Participation is at your own risk, and we advise visitors to consider their physical condition before embarking on the tour.