Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

A quiet country churchyard holds a monument to the last known sin-eater in England.

Stonehenge has nothing on Castlerigg’s views.

One family's environment-friendly hobbit-house in Wales.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

A group of glacial erratic boulders are improbably balanced on white limestone pedestals.

The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

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

A unique waterfall that some believe attracts the fairfolk.

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

This tangled English forest looks like something right out of a fairytale.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

An abandoned horror film set sits eerily along a highway through Hollywood's "door to the desert."

This restored 17th century synagogue is one of the few remaining structures in Morocco’s ruined Jewish quarters.

After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

This fairytale-like structure is the last turf church ever constructed in Iceland.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

Rising from the sea like a stone monster.

Iceland's tribute to its thankless civil servants.