One of the largest mechanical models of the solar system in the world.

On a site with a long military history, a 1980s shelter.

Following years of secrecy, the hidden history of a World War II site is being brought to light.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

The stately remains of Llywelyn the Great's mighty fortress.

The remains of centuries of copper mining appear like an alien landscape.

Legends say that this small island was the final resting place of the Welsh saint of lovers.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.

This fantastical and eclectic English garden takes its inspiration from Egypt, China, the occult and more.

Located in the house where Gustave Flaubert was born, this odd museum has more to do with medical grotesquery than the Western novel.

WWII artifacts, including the building itself.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

This Vietnamese bar doubles as a multistory labyrinth.

The wartime prison now features haunting sculpted reenactments of the atrocities that took place there.

A memorial to the monk who set himself on fire to protest the persecution of Buddhists in Vietnam.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

An extravagant monument to an extravagantly unpopular Emperor.

This Vietnamese hell cave lets visitors take a walk through a devilish underworld full of demons.

Have fun at the world's first Buddhist waterslide park.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.