Municipal Library of Prague

Tucked inside the Municipal Library of Prague, the Idiom installation by Matej Kren is one of the most visually striking interior subjects in the city. The sculpture is a cylindrical tower built from hundreds of books, with mirrors at the top and bottom creating a seamless illusion of infinite depth. Position yourself directly at the tear-shaped opening and shoot straight in to capture the tunnel effect, using a wide angle lens to exaggerate the sense of depth. A longer focal length compresses the repeating spines nicely if you want a tighter, more abstract frame. The interior lighting is consistent throughout the day, so timing matters less than technique; bring a steady hand or use a surface to brace your camera for slower shutter speeds. Keep your phone or camera level to maintain symmetry, as even a slight tilt breaks the effect. (Prague, Czechia)