This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

There are hundreds of secret WWII bases hidden in British forests. Built to fight a Nazi invasion, they remained unknown for decades.

This ruined 15th-century hermitage is steeped in myth and mystery.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

These Roman ruins in England’s Lake District are 2,000 years old, but look pretty good for their age.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

Modern megaliths form this work of cosmic, Celtic landscape art.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

This grave resides at the crossroad of three parishes.

This disused Cold War bunker has been restored to all of its early 60s glory.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

Take a sea tractor to the Art Deco hotel on the island that inspired Agatha Christie.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

Visit the WWII bunker where the British won the battle for the skies.

The last of the 19th-century booze-free bars has been slinging teetotal tonics for over a century.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

A wildlife paradise, this island is one of the world’s most important habitats for burrow nesting seabirds.

The secret wartime bunker built on the platforms of an abandoned Tube station.

Museum celebrating the history of computers, especially their role in codebreaking.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

These medieval tunnels provided water to the city above through centuries of civil war and plague.