Clementinum Prague

Also known as Klementinum

The Klementinum is the second-largest building complex in Prague after Prague Castle, covering 20,000 square meters, and its Baroque library hall is one of the most photographed interiors in the Czech Republic. The library's ceiling fresco depicts a medieval map of human knowledge; the shelves hold over 20,000 volumes mostly on astronomy and science.

The Klementinum is Prague’s second-largest building complex, originally a Jesuit college that became a national library under Maria Theresa after the Jesuit suppression in 1773. The Baroque library hall, with ceiling frescoes depicting a medieval map of human knowledge and shelves of 20,000 astronomy volumes, is the highlight. The Astronomical Tower has recorded unbroken weather data since 1775. Access is by guided tour only (around EUR 12-15); advance booking through klementinum.com is essential in peak season. Steps from the Charles Bridge Old Town end; Metro Line A to Staromestska.