Places chastinho Wants to Go

A crumbling World War I fort that is reached through a series of concrete tunnels.

This one-time health resort was used by aristocrats around the world.

This massive subterranean fissure is known as the "underground Grand Canyon."

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

One of the world's tallest flagpoles.

One of Bristol's best-hidden gems has ties to Lord Byron, whence it became the nation's first reformatory school for girls.

Buddha shrines hide within dark tunnels at this unique forest temple.

You'll never meet anyone this passionate about elephant droppings.

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

Take a hidden path to the mouth of the cave to watch millions of bats swarm at sunset.

Abandoned soda factory on a Cambodian roadside in a state of beautiful decay.

A secluded, little-known temple hidden amid the dense jungle.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.

This collection of reclaimed landmines acts as both an exhibition of their deadly history and as a shelter for children affected by them.

A small 12th-century temple surrounded by waters believed to have curative properties.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A former French military respite turned jungle tourism hotspot.