Cellular Jail, India

The Cellular Jail, also known as Kālā Pānī, was a colonial prison situated in the Andaman and Nicobar Islands, India. The prison was used by the British especially to exile political prisoners to the remote archipelago. Many notable freedom fighters such as Batukeshwar Dutt and Veer Savarkar, among others, were imprisoned here during the struggle for India’s independence. Today, the complex serves as a national memorial monument. [Source]