This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A magnificent, iconic stone tower in the Scottish Highlands.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

These fantastically named natural pools look like something out of a Scottish myth.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

A legendary rocking stone, returned to its clifftop perch.

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

A writer's tiny retreat built from salvaged shipwreck timbers.

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

Perhaps the only prehistoric monument with its very own public bus stop.

This ancient church, rebuilt at least 3 times, is flanked at all sides by history.

A circle stone within a stone circle.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

A open air theatre built on a cliff by an eccentric British woman.

A unique waterfall that some believe attracts the fairfolk.

400-year-old garden, restored to beauty.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Now isolated, this church was once the center of a bustling village that succumbed to the Black Death.

The world’s largest magazine collection was born from a single shelf in a teen’s bedroom.

A historic hill of tall tales, with one rather special tree.

This overlooked street light once served as a KGB dead letter box.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

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