Snake Island
LOCATION Atlantic Ocean, off the coast of Sao Paulo State, Brazil
NEAREST POPULATION HUB Sao Paulo
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SECRECY OVERVIEW Access restricted: a snake-infested island off-limits to visitors.
RAF Menwith Hill
LOCATION North Yorkshire, England
NEAREST POPULATION HUB Harrogate
SECRECY OVERVIEW Operations classified: a US-run base purported to be part of the ECHELON surveillance system.
The Queen's bedroom, Buckingham Palace
LOCATION Westminster, London, England
NEAREST POPULATION HUB London
SECRECY OVERVIEW High-security location: the private chamber of the Queen.
Chapel of the Ark of the Covenant
LOCATION Northern Ethiopia
NEAREST POPULATION HUB Axum
SECRECY OVERVIEW Access restricted: the purported home of the Ark of the Covenant.
Dulce Base
LOCATION Rio Arriba County, New Mexico, USA
NEAREST POPULATION HUB Albuquerque, New Mexico
SECRECY OVERVIEW Existence unacknowledged: believed by some to be home of an underground extraterrestrial base.
Wildenstein Art Collection
LOCATION Stored around the world. Headquartered in Paris.
NEAREST POPULATION HUB Paris, France
SECRECY OVERVIEW Location uncertain: said to be the most valuable private art collection in the world.
The Amber Room
LOCATION Purportedly in an underground cavern on the German-Czech border
NEAREST POPULATION HUB Chemnitz, Germany
SECRECY OVERVIEW Site of historic mystery: an ornate room seized by the Nazis and later lost.
North Sentinel Island
LOCATION Andaman Islands, Bay of Bengal
NEAREST POPULATION HUB Port Blair, Great Andaman
SECRECY OVERVIEW Access restricted: a remote island whose people reject contact with the outside world.
The Tomb of Genghis Khan
LOCATION Assumed to be in the Khentii Province of eastern Mongolia
NEAREST POPULATION HUB Ulan Bator
SECRECY OVERVIEW Location uncertain: last resting place of the legendary Mongol leader.
Woomera Prohibited Area
LOCATION Woomera, Australia
NEAREST POPULATION HUB Adelaide, South Australia
SECRECY OVERVIEW Operations classified: the world's largest land-based weapons testing
