Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

The world's smallest movie theater runs on solar power—an attraction in itself.

Luxurious hotel designed to stir the imagination of its many visitors.

A measuring mishap led to these artificial stone ladies losing their stomachs.

An optical Illusion once believed to be an electrical phenomenon.

Now nearly dry, this lake is said to be the ancient home of the Lady of the Lake, and was once thought to be bottomless.

This remote Scottish isle is only inhabited by seals, birds, and the memory of a tragic settlement.

This king penguin is a knighted brigadier of the Norwegian Army.

A circle stone within a stone circle.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

Oxford University's stateliest library seems designed to make students truly feel the weight of knowledge.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

A perilous medieval road leading right into the sea.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

Geodesic dome luxury retreat in the Scottish Highlands.

The last four extravagant street signs of London's historic banking street.

Scotland's only funicular railway is also the United Kingdom's highest.

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

These lovely Turkish-styled baths were brought back to life after winning a reality show competition.

A sweet symbol marks the place where torturous executions were once carried out.

London's largest outsider art museum.

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