Museum of Illusions

This guide to the Museum of Illusions in Belgrade stands you outside Nušićeva eleven and asks why two people of the same height can come out of one room looking like a giant and a dwarf. It reaches back to Adelbert Ames Junior, the American scientist who built a room designed to fool the eye, and to two friends in Zagreb who wanted out of office life. Best heard on the pavement by the entrance, before you step inside.