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Explore Prague’s hidden gem with a guided tour of the Klementinum. Discover the Baroque Library, Meridian Hall, and enjoy panoramic views from the Astronomical Tower for just $18.
Discover Prague’s Hidden Gem: The Klementinum Library & Astronomical Tower Guided Tour
This popular tour offers a fascinating peek into one of Prague’s most impressive historic sites, the Klementinum. For about 45 minutes, you’ll be led through a series of awe-inspiring spaces, from the ornately decorated Baroque Library Hall to the vantage point atop the Astronomical Tower. With a cost of just $18 per person, it promises a deep dive into the city’s scientific and architectural heritage, all with a knowledgeable guide.
What really makes this experience stand out is the opportunity to climb the 68-meter-high tower and take in panoramic views of Prague—something that’s hard to beat in terms of photo opportunities and sheer awe. Plus, the visit to Meridian Hall to see how the Jesuits used a beam of sunlight to mark noon adds a delightful scientific twist.
One possible consideration is the number of stairs, as the tour involves a fair amount of climbing without an elevator, which might be a challenge for travelers with mobility issues or those who prefer less strenuous activities. That said, the overall value, especially considering the entrance fee and the expert guidance, makes it an excellent choice for history buffs, architecture lovers, and anyone wanting a memorable slice of Prague’s past.
This tour is especially suitable for visitors who enjoy behind-the-scenes stories, stunning architecture, and breathtaking city views. It’s also perfect if you prefer a concise but enriching experience that packs history and visual splendor into just 45 minutes. Let’s explore what makes this tour so compelling and what you can expect along the way.


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The adventure begins at the middle of the Klementinum complex, next to the Mirror Chapel, with coordinates 50.086590, 14.416713. It’s a straightforward meeting spot, and by exchanging your voucher at the ticket office, you gain access to this exclusive experience. The tour lasts approximately 45 minutes, making it perfect for those with tight schedules or as part of a broader sightseeing day.
Constructed in 1653, the Klementinum now primarily houses the Czech National Library. What makes this site so captivating isn’t just its age but its sprawling nature—covering an entire city block. As you walk with your guide, you’ll get an overview of the building’s evolution from a Jesuit college to a treasure trove of scientific and literary history.
One of the tour’s highlights is the Baroque Library Hall. While access is limited to viewing behind a fence, the exterior and the interior’s ambiance are breathtaking. The frescoed ceiling, gilded carvings, and large globes create an atmosphere of scholarly grandeur. Some reviewers note that photos are only permitted on one side, which can be frustrating for photography enthusiasts, but the view and the story behind the space compensate for this.
Many visitors comment on how “the library is so beautiful” but also note that the tour only allows a quick outside glimpse, which makes sense given its protected status. Still, hearing about the library’s collection and its history adds a layer of appreciation for what you can’t see up close.
From here, the guide moves to Meridian Hall, a space that historically helped determine the exact moment of noon by sunlight passing through a small hole in the wall. Seeing the collection of instruments housed here, you’ll get a sense of how science was practiced in the 17th century. One reviewer, James, praised their guide Jakub for sharing “interesting points about the building and its history,” making this segment both educational and engaging.
The final part of the tour is the climb up the 68-meter-high Astronomical Tower. This ascent involves many steps—reviewers mention “small winding staircases” and “steep” sections, with some noting the climb is “quiet higher than I thought.” There’s no lift, so physical fitness and mobility are considerations for some. But for those able to make the ascent, the reward is a panoramic, 360-degree view of Prague.
Guests consistently mention how “the views are spectacular” and that seeing Prague Castle from above is a photo opportunity not to miss. Evening tours, in particular, offer beautiful city lights, adding to the magic of the experience.

According to reviews, guides like Jakub, Jana, Miroslav, and Lukas contribute significantly to the charm of the tour. They are described as “knowledgeable,” “friendly,” and “enthusiastic,” which helps bring the historic spaces to life. Reviewers specifically highlight guides’ abilities to answer questions and share stories that aren’t found in guidebooks.
One guest, Uen Ting, appreciated the knowledgeable presentation, mentioning that their guide Martin could speak English very well and shared stories about the building’s history. Another reviewer, Christina, was grateful for the guide’s sensitivity during a difficult time when the tour coincided with a mass shooting; the staff made sure everyone stayed safe and informed.
Some mention that the tour can be a bit fast-paced, especially the climb, with the stairs being quite steep. Reviewers also note that the guide’s English may sometimes be a little hard to understand, but overall, the enthusiasm and knowledge outweigh minor communication hiccups.


This experience is perfect for travelers who enjoy a mix of history, architecture, and panoramic views. It appeals especially to those who appreciate guided storytelling and want an authentic glimpse into Prague’s scientific and cultural past. If you’re comfortable with stairs and looking for a budget-friendly, engaging activity, this tour hits all the right notes.
It’s less suited for visitors with mobility concerns or those seeking a leisurely, slow-paced experience. The focus on stairs and quick visits means it’s best for those who want a concise, information-packed outing.
The Prague: Klementinum Library & Astronomical Tower Guided Tour offers a unique window into the city’s past, combining stunning architecture, fascinating scientific history, and eye-popping views. Priced at just $18, it provides excellent value, especially given the knowledgeable guides and breathtaking vistas.
Whether you’re a history buff, an architecture lover, or simply someone who enjoys spectacular cityscapes, this tour delivers a memorable experience without taking up your whole day. The combination of insightful stories and panoramic views makes it a highlight for many visitors—and a must-try for those wanting to see Prague from a different perspective.
Overall, it’s a well-organized, enriching activity that balances brevity with depth, catering especially to those eager for authentic, educational, and visual delights in Prague.
“Very informative, and the guide was very clear in her descriptions and with providing information.”
Is this tour suitable for people with mobility issues?
The tour involves many stairs, with no lift available, so it isn’t suitable for wheelchair users or those who find climbing difficult.
How long does the tour last?
The guided experience typically lasts around 45 minutes, making it a quick but impactful visit.
What is included in the ticket price?
Your ticket covers entry to the Klementinum complex, the guided tour, and access to climb the Astronomical Tower.
Can I take photos during the tour?
Photos of the exterior of the Library Hall are allowed on one side, but interior photography may be restricted for preservation reasons.
Is the tour available in languages other than English?
This particular tour is conducted in English, and reviews suggest guides speak the language well, though no other languages are specified.
What should I wear for the climb?
Wear comfortable, sturdy shoes suitable for stairs and uneven surfaces, as the climb involves narrow, winding stairs.
This detailed tour review highlights the essence of what makes the Klementinum experience so special. If you’re after a compact, scenic, and revealing journey into Prague’s scientific and architectural history, this is a great choice.