Hisa iluzij (House of Illusions), Ljubljana

Hiša iluzij (House of Illusions) is an interactive museum dedicated to optical illusions, visual perception, and hands-on science. Opened in September 2016, it is part of an international network of illusion museums while presenting exhibits adapted for local visitors. Spread across several floors, the museum features more than 70 exhibits that explore how the brain interprets colour, perspective, light, and movement.

The exhibition includes illusion rooms, holograms, kaleidoscopes, mirror installations, stereograms, and puzzles that challenge perception and logical thinking. Popular attractions include the Ames Room, where people appear to grow or shrink, the Vortex Tunnel, which creates the sensation of losing balance, and the Anti-Gravity Room, where objects seem to move against gravity. Visitors can also try the “Head on a Platter” illusion, experiment with a face-swapping mirror, or lie on a bed of 1,200 nails in the Space Meditation Room.

Interactive displays explain the principles behind many of the illusions, making the museum suitable for both children and adults. Wooden brain teasers, perspective-based exhibits, and visual experiments encourage active participation rather than passive observation. Many installations are designed for photography, allowing visitors to create unusual images while learning about science, psychology, mathematics, and visual art.