Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

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

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

Surreal riveted sea forts once protected the Kent shores from German attack.

Northern Ireland's Brobdingnagian stepping stones.

This watchtower once presided over the Berlin Wall.

A dilapidated space station with overtones of 'Alien' and 'Bladerunner' featuring a multiplayer games galore.

Europe's "only museum dedicated to the decapod" is full of quirky and absurdist displays, including one featuring the "famous" Giant Crab of Margate.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

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

A circle stone within a stone circle.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Abstract dinosaur models in London.

Looking for the train station? Try the building shaped like a train.

A floating cat sanctuary on an Amsterdam canal.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

Long abandoned underground complex to keep royals safe from a nuclear war that never came.

A fantastic castle rumored to be the birthplace of King Arthur.

Closed for decades, this strange symbol of Japan's Expo '70 has finally opened its psychedelic insides to the public.

The original "capsule building" is a masterpiece of Metabolist architecture.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

A magical place that lets you play in and explore the world of Studio Ghibli.