The library's ceiling frescoes represent the 'Temple of Wisdom' and were painted by Jan Hiebl.
The Astronomical Tower contains a functional, historical meridian instrument used for marking local noon.
The Klementinum library holds over 20,000 volumes, mostly rare theological literature from the 17th and 18th centuries.
Weather observation records at this site have been kept continuously since 1775, the longest in the Czech lands.
The complex served as the third-largest Jesuit college in the world at the time of its completion.
Legend claims the library holds a collection of globes that were once used by astronomer Johannes Kepler.
The Mirror Chapel features a unique interior design with mirrors embedded in the walls and ceiling.
The Klementinum was the main seat of the Jesuit Order in Prague before their suppression in the 18th century.
The Astronomical Tower is 68 meters high and was originally used for observation by Jesuit astronomers.
It remains one of the largest building complexes in Europe, covering over two hectares.
The Klementinum is a historic complex in Prague, formerly a Jesuit college, that houses one of the world's most ornate Baroque libraries. The library hall, established in 1722, features elaborate ceiling frescoes by Jan Hiebl and a collection of historical globes. Visitors can ascend the 18th-century Astronomical Tower to view Prague's historic center from a high vantage point. The complex also encompasses the Mirror Chapel, frequently used for classical music performances. The site holds the oldest weather records in the Czech Republic, initiated in 1775. Its architecture reflects centuries of development, blending Gothic, Renaissance, and Baroque elements. The library's original shelves remain in place, holding thousands of theological works. Access is strictly managed via guided tours, which are required to view the library interior. The site serves as a vital historical repository for Czech intellectual history.
The view of the Prague castle skyline from the gallery of the Astronomical Tower.
Book tour tickets well in advance online, as entry to the library and tower is strictly limited.
Do not miss the view from the top of the Astronomical Tower, as it is one of the few high vantage points in the Old Town.
Check the concert schedule at the Mirror Chapel if you wish to experience the acoustics of the Baroque space.
Do not attempt to walk into the library hall without a guide; security strictly prohibits unauthorized entry.
Photography is restricted inside the library hall to preserve the collection; maintain a quiet tone inside historical interiors.
