From secret testing sites to uncontacted tribes, here are 10 things hidden on forbidden islands. 10. Vozrozhdeniya Island The BBC called this island the "Deadly Germ Warfare Island Abandoned by the Soviets". This place is something out of a horror film, but it is actually real. During the Cold War, the Soviet Union used Vozrozhdeniya Island as a top secret testing ground for deadly Soviet pathogens designed to wreak havoc when necessary. 9. Diego Garcia Military Base Situated just seven degrees south of the equator in the central Indian Ocean, Diego Garcia is an atoll of the Chagos Archipelago. It became part of the British Indian Ocean Territory (BIOT) in 1965, and its population and function changed dramatically over the following years. 8. The World's Most Isolated Tribe North Sentinel Island is home to a virtually uncontacted tribe known to aggressively resist outsiders. Located in the Bay of Bengal, the island is part of the Andaman and Nicobar Islands archipelago, and is a