The oldest inn in England served brew to the crusaders.

This enormous spiral sculpture looks strangely out of place on the edge of a housing development.

A 13th-century inn where the ill-fated King Charles I spent his last night of freedom.

A seaside town with no sea in sight.

This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."

When the public was consulted about a new piece of street art, they naturally asked for an enormous metal dragon.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Long-secret natural history museum, featuring the skull of a "Terror Bird."

A magnificent, iconic stone tower in the Scottish Highlands.

Built to hold the worst of the worst of the Nazi war prisoners.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

During this Shetland Islands celebration, hundreds of torch-carrying "guizers" lead a procession to burn a viking longboat.

This tiny little cave was said to have been a refuge for a saint with a glowing arm.

Geodesic dome luxury retreat in the Scottish Highlands.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

This huge concrete map of Scotland was built as a thank you gift from a Polish soldier.

A glacial pothole was once a hideout for a notorious Scottish outlaw.

A remarkably well preserved tower dating all the way back to the Iron Age.

A local tree surgeon has created a whimsical walk full of carved tree stumps near Scotland's Loch Lomond.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

One of Scotland's most important modern structures, it just made the '100 Most Endangered Sites' list.

This cramped crevasse saw the entire population of its island suffocated inside its depths.

The mystery of this small, brick pond eluded its possibly only investigator until his death.