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

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

Britain's oldest and biggest hole in the ground.

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

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

Wooden sleds have replaced donkeys to cart goods around this utterly charming car-free village.

This foolish Victorian sea fort was converted to a deluxe hotel.

Cliffs full of fossils at the portal to England's Jurassic Coast.

A midnight snack that lights up the night.

Flaming barrels of tar race through these village streets on Bonfire Night, a tradition that dates back centuries.

At just 25 inches at its narrowest point, it's one of the tightest streets in the world.

The abandoned fishing village was swept right into the sea.

Half-eaten food on display at an English café.

A two-way chairlift system between Zugliget and the highest point in the city.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

This bike path traverses the treetops.

An early 20th-century sanatorium, long abandoned and now being reclaimed by nature.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

This memorial museum chronicles the apocalyptic destruction of the First World War.

The foundations of a forgotten fortress, wedged in between two streams.