London's Victorian Tower of Babel.

An unexpectedly extraterrestrial room in a former Victorian resort club.

This former abandoned hospital, a complex of stunning 19th century buildings, once housed 2,000 psychiatric patients.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

In an arboretum with hundreds of memorials to the fallen, this one might be the most poignant.

An abandoned 18th century manse looks like something out of an Indiana Jones movie.

Where Aleister Crowley attempted to seize the Hermetic Order of the Golden Dawn in a mask and a kilt.

A million and a half tons of earth were used to create one of the world's largest land sculptures.

In 1943 the British military took control of this village, telling residents they had to leave temporarily. The villagers were never allowed to return.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

One of the world's oldest trees comes with a Welsh legend intertwining it with a spirit prophesying death.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

Picturesque ruins once held off mighty armies.

A midnight snack that lights up the night.

Europe's largest prehistoric mound – burial site of a legendary king?

Built by the patron saint of illusionists this Elizabethan manor house is riddled with secret cubbies for hiding priests.

This shell of a historic manor house on the Isle of Wight is said to be the most haunted site on the island.

19th century tunnels burrowed under Liverpool.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.