Its rock art gallery has the largest collection of prehistoric paintings displayed in India dating from 14,000 B.C to 2000 B.C.

[5] The Allahabad Museum is centrally located in the Civil Lines area of the city in a lush green garden at Chandrashekhar Azad Park, popularly known as Company Bagh.

[6] A museum was originally set up in Allahabad in 1863 by North-West Province Governor General Sir William Muir, before being shut down for unspecified reasons in 1881.

[4][9] The pistol of Chandrashekhar Azad, a Colt Model 1903 Pocket Hammerless semi-auto .32 bore, is displayed and preserved in the entrance hall of the museum.

Azad used it to shoot himself after a long firefight with British policemen at the Alfred Park, the same year the museum was established.