21/03/2026
📚 Infinity Book Tower in Prague (“Idiom”)
The “book tower” in Prague you’re looking for is actually called Idiom — a famous art installation inside the Municipal Library of Prague.
✨ What it is
• A tower made of about 8,000 books stacked in a circular column 
• Created by Slovak artist Matěj Krén
• Built in 1998 and placed in the library entrance hall 
🔮 Why it looks “infinite”
• There are mirrors at the top and bottom
• When you look inside through the opening, it creates an illusion of endless books 
👉 It’s often called:
• Infinity Book Tower
• Book Tunnel
• Column of Knowledge
📍 Where to find it
• Inside the Municipal Library of Prague (Mariánské Square, Old Town)
• Free to visit and very close to Old Town Square & Charles Bridge 
📸 Tips
• There’s usually a queue for photos (it’s super popular) 
• Best time: early morning or weekday
• Stick your head/camera into the opening for the cool “infinity” shot
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