Have you seen pictures of Prague’s infinite book tower and wondered how to see it in person? This guide covers everything you need to know, from what to expect to top tips for visiting!

We’ve visited Prague a few times now, and we absolutely love it. There’s something special about the city’s mix of historic landmarks and modern sights. Among these, the Infinity Book Tower stands out as one of Prague’s hidden gems.
Also called the Prague Book Tunnel, this art installation has become a hit on Instagram and TikTok for its optical illusion effect. Whether you’re into books or just want a fun photo for your feed, this spot is worth checking out.
In this guide, we’ll share everything you need to know to make the most of your visit, including practical tips to ensure you enjoy your time at this quirky attraction.
Table of Contents Show
Some of the links in this post are affiliate links. If you click on the link and purchase the item or service, we may receive a small commission at no extra cost to you. By using our links, you’re supporting us to provide you with free content for your city trips. Learn more on our Privacy Policy page.
What Is the Infinity Book Tower?
The Infinity Book Tower is a unique book sculpture located in the entrance hall of the Municipal Library of Prague. Often referred to as the “Tower of Knowledge” or “Column of Knowledge”, it represents the concept of infinite knowledge.
This cylindrical tower consists of over 8,000 books stacked to create a striking visual experience.
It creates an illusion of infinity, with a mirror at the bottom of the piece and another at the top, giving the impression of an endless stack of books. A tear-shaped opening at the front of the tower invites you to peek inside.
The sculpture’s official name is Idiom, and it was created by Slovak artist Matej Krén. It was first showcased at the São Paulo Biennial Exhibition in 1995 before finding a permanent home in the Municipal Library of Prague in 1998.
Since then, it has become a local landmark of Prague in its own right but has recently gained increased recognition worldwide through social media.
The best part? It’s completely free to visit, and you don’t even need to be a library member to access it.
Is the Infinity Book Tower Worth Seeing?
Yes, Prague’s Infinity Book Tower is worth seeing, especially if you’re looking for something unique. It’s a hidden gem with a great infinity illusion and Insta-worthy design. The tower is free, easy to find, and centrally located. However, skip it if you have to wait longer than 15 minutes.
Pros:
- Free entry, making it a great budget-friendly stop.
- It’s conveniently located near Charles Bridge and Old Town Square, so it’s simple to fit into your itinerary.
- Easy to find, located at the top of the stairs in the entrance area of the Prague Library.
- The optical illusion is visually stunning and definitely Instagram-worthy.
Cons:
- The tower itself isn’t interactive. There’s not much to do other than take in the view.
- You only get a couple of minutes to snap your photos or videos.
- Be warned: it can get veeery crowded, especially at peak times. We’ve seen the queue go around the building on multiple days and even met some visitors who had waited over 1.5 hours to see the art piece (and we don’t think it’s worth waiting that long!).
Top Tips for Visiting
We wanted to share our top tips to help you make the most of your visit:
- Best Time to Visit – To avoid crowds, we recommend going early (before 10am) or closer to closing time (an hour before); see opening times in the box below. Saturdays, national holidays, and peak tourist season (Christmas, Easter, summer) are the busiest times to see the book tunnel. We visited during a quieter period and only had to wait 5 minutes, but we expect queues to be up to 2 hours if you come during busy times.
Opening hours: Infinity Book Tower (“idiom”)
Mondays: 1pm-7:30pm
Tuesday-Friday: 9am-7:30pm
Saturday: 1pm-5:30pm
Sunday: closed
- What to Bring – You won’t need much, just your camera or smartphone to snap pictures of the impressive design. Tripods aren’t allowed, so keep it light. And don’t forget a portable charger in case your phone runs out while trying to capture the magic.
- Ensure You’re at the Right Library – There are other libraries in Prague, so make sure you’re headed to the Prague Municipal Library at Mariánské náměstí 98/1, Prague 1, near Old Town Square. Some visitors have made the mistake of going to the wrong library. For convenience, here’s the Google Maps link to the library building.
- Lastly, be respectful and patient with others (including the library staff). Offering to take pictures for those in front of you is always a nice gesture!
FAQ: Prague’s Book Tunnel
Here are the most frequently asked questions we’ve come across:
Is the Infinity Book Tower in Prague free?
Yes, the Infinity Book Tower is free to visit, and you don’t even need to be a library member to access it.
How many books are in the Infinity Book Tower Prague?
The tower contains 8,000 books.
Can you touch the books?
No, the books are part of the art installation and should not be touched.
Do you need to book tickets?
No tickets are required. The book tunnel art installation in Prague is free and open to all visitors.
Is it wheelchair accessible?
Yes, the Municipal Library of Prague is wheelchair accessible, including the area where the tower is located.
Final Thoughts
The Infinity Book Tower in Prague is an excellent addition to your itinerary if you’re a book lover or someone who enjoys quirky art and optical illusions. Its unique design and free entry make it a fantastic spot to add to your day while exploring the city. Plus, it makes for an Insta-worthy moment if you’re looking to capture something special.
Just make sure you time your visit right to avoid long queues, as it can get busy, and know that it’s a quick stop.
We hope this guide helps you plan your visit and make the most of your time there.
Also, check out our Prague-related travel guides: