Constructed by the British colonial administration between 1896 and 1906, the Cellular Jail was a maximum-security penal settlement designed for solitary confinement of political dissidents and freedom fighters. Famous inmates included Veer Savarkar, Batukeshwar Dutt, and Barindra Kumar Ghosh. Now a revered National Memorial, visitors can explore the seven original wings radiating like spokes of a wheel, the gallows, museum galleries, and witness the poignant narration of the freedom struggle during the Light & Sound show.