An 18th-century lighthouse built on a 16th-century castle is now a monument to the maritime beacons of Scotland.

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.

A monolithic monument in Greater London.

The excellent acoustics of this natural amphitheater made it a popular preaching spot for the founder of the Methodist Church.

The photographs of "fairies" that fooled much of the world (including the creator of Sherlock Homes) were taken at this English stream.

Where Agatha Christie mysteriously disappeared in 1926.

A brick foundation and piles of listing building materials are all that remains of this World War II POW camp.

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

Wonderfully preserved Victorian factory, complete with a preserved steam powered engine house.

This surreal art house looks like a geometric version of a small chapel.

A mysterious bridge over a sunken Roman road.

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

The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

Grab a cuppa at England's first and only domestic tea plantation.

This former quarry is now a vibrant labyrinth of magical in situ sculptures.

This Cheshire museum has cuckoo clocks, a rare pipe organ and vintage motorbikes. But mostly cuckoo clocks.

Built during the Scottish boom in the oil industry, the village was never inhabited.

This modern labyrinth lies in the shadow of a ruined medieval castle.

The breadfruit-adorned final resting place of the infamous Captain of the HMS Bounty.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

A circle stone within a stone circle.