The Museum of Illusions at Connaught Place in New Delhi is India’s first museum of optical illusions. It is a fun place where you can challenge your senses by exploring exhibits like holograms, a supposedly rotating cylinder, a room without gravity, rooms with mirrors that distort reality, and much more. The museum houses a plethora of holograms, which are basically images that create 3D illusions of all kinds and often change or disappear.