The Museum of Illusions in Connaught Place, New Delhi is India's first optical illusion museum. It is a fun place to challenge the senses by exploring exhibits which include holograms, a supposedly rotating cylinder, a room with no gravity, rooms with mirrors that distort reality and much more.

Within the museum are a plethora of holograms which are basically images that create 3D illusions of all kinds and often change or disappear. One can also get to see photo illusions which come with all kinds of backgrounds, or experience a stereogram that is a picture. It contains a hidden object which appears to be 3D when viewed from a certain angle. There is also a Smart Playroom here which is aimed at stimulating cognitive function; one can learn through puzzles, mathematical games, building blocks, impossible knots etc. The Smart Shop sells many kinds of games, souvenirs and small optical illusions.