Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

A subterranean playground in an abandoned slate mine.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A Roman spa buried deep beneath the City of London.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

A unique waterfall that some believe attracts the fairfolk.

London's old-school healing garden.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

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

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Famously misunderstood wonder of the ancient world

Rebuilt remains of a temple to Roman god Mithras.

A student driver's nightmare.

Hidden beneath the streets of London is a secret subway that only carried mail.

This 1920s Dutch barge is now a floating bookstore.

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

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."