5North Sentinel Island, India

In the Bay of Bengal sit the Andaman and Nicobar Islands, most of which are Indian territories.

The Sentinelese tribe of North Sentinel Island is thought to have been there for 60,000 years, and it’s one of the last communities in the world to remain totally isolated from outside societies. In 2006, the boat of two fishermen drifted to the shallows of North Sentinel Island, where the Sentinelese killed the pair. Since then, there have been other reports of the tribe shooting arrows at passing helicopters.