North Sentinel Island, India
Thanks to satellite images and air travel, very few unknown places remain in the world. North Sentinel Island in Bengal Bay is as close as it gets to being "undiscovered." Covered by dense forests, this member of the Andaman Islands is inhabited by a group of people who actively avoid contact with the outside world.
Known as the Sentinelese, the island's tribe lives a subsistence lifestyle. Because of heavy foliage, it is impossible to observe them from the air. Throughout the years, there have been various attempts to make contact with the Sentinelese. They have been known to throw rocks and shoot arrows at helicopters and ships that come too close to the island. A few years ago, two Indian fisherman were killed by tribesmen when they drifted into the shores of North Sentinel.