A storm shelter built for survivors of shipwrecks.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A bizarre example of collective behavior resulted in thousands of shoe prints in Vegas parking lots.

One of the largest squares in Europe contains an entire artificial island.

Go inside to really appreciate this 500-year-old technological masterpiece.

This enigmatic stone pool is all that remains of an ancient palace.

This giant wire frame man sculpture is crouched in contemplation.

A 2,000-ton rock resting in a state of a delicate balance.

Stonehenge has nothing on Castlerigg’s views.

This collection of lurid religious statues tell the tales of a saint who stood down the devil.

The spectacular and eerie moss-covered grave site of 19th-century Belgian merchant.

The oldest cemetery in Belgium.

No shoes allowed on this trail, which is designed to be experienced barefoot.

This legendary giant, born from vegetables, terrorized townspeople and cheated local children in games.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

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

Take a leisurely walk through the park to find the seven giant troll sculptures hidden throughout the park.

A historic Christian shrine nestled within a spectacular natural cave.

This hidden gem along the Utah-Arizona border is truly worth the rugged journey.

This huge abandoned fortress hidden inside a mountain holds a world of subterranean secrets.

A landscape decorated with enormous skull sculptures.

A muddy alien landscape that is home to rare species of exotic plants.

A dream-like maze full of strange art, surreal spaces, and fantasy landscapes to get lost in.

This abandoned fortress still stands guard over the Guadiana River despite a history of warfare.