Souvenir Stamp in Astronomical Tower in Clementinum

A visit to Clementinum Astronomical Tower is a journey through time, science, and architectural marvels. It offers a unique blend of historical significance and celestial fascination. In my series of posts about travel book I wrote about tourists stamps in Prague. Today’s post is about one more place to collect in your travelbook. BUT! There is no any travel stamps in this place, unfortunately!

View from the top

Clementinum, a former Jesuit college and now the National Library of the Czech Republic, boasts the Astronomical Tower as one of its crown jewels. As you ascend the tower’s spiraling staircase, you’re transported to an era when the study of the stars was not only a scientific pursuit but a spiritual one.

At the top, an awe-inspiring view of Prague unfolds before your eyes. The red rooftops, the majestic Vltava River, and the city’s spires create a panorama that transcends the ordinary. The Astronomical Tower’s observation deck provides an unparalleled vantage point, making it a must-visit for both astronomy enthusiasts and those simply in search of breathtaking views.

What else you will find here

The Astronomical Tower is an integral part of the Clementinum complex, which houses one of Europe’s most magnificent Baroque libraries. The library’s origins date back to the Jesuit College’s establishment in the 16th century. It has evolved into the National Library of the Czech Republic.

How to get there

Clementinum is conveniently located in Prague’s Old Town. If you are on the Old Town Square, Charles Bridge, or other central landmarks, you can easily reach Clementinum on foot. Follow signs to Mariánské náměstí (Marian Square). The closest metro station is Staroměstská (Line A). From there, it’s a short walk to Clementinum. If you go by tram, the closest tram stop is Karlovy Lázně.


In the embrace of Clementinum’s Astronomical Tower, time itself seems to pause, offering a profound immersion into Prague’s celestial and intellectual heritage. A visit here not only unveils the secrets of the cosmos. It leaves you with a lingering appreciation for the harmonious convergence of history, science, and breathtaking panoramas in this timeless Czech gem.

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