The Klementinum is Prague's second-largest building complex after Prague Castle and houses the most beautiful library in the world.

A unique sightseeing tour through a part of the Klementinum, the former Jesuit college, takes you to the Astronomical Tower and the extension that connects it to the northern wing of the Klementinum complex. Here you will have a guided tour of the Baroque Library, described as the most beautiful library in the world. You may view the Baroque Library but not enter it. The next stop on the tour is the Meridian Hall with period astronomical instruments on the 2nd floor of the Astronomical Tower. The highlight of the tour is the ascent to the gallery.a

Opening hours and admission

All the information about concerning the sightseeing tour you find at the tour´s operator Prague City Tourism website. The tickets can be purchased at the ticket office under the Astronomical Tower or online. We recommend you to buy tickets in advance.