A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

The world's most remote airport.

A wooden dock art installation on Chiloé Island taps into the island's indigenous mythology.

The largest geyser field in the southern hemisphere is a spectacular sight.

This large round boulder is said to emit spiritual power, but it may just be magnets.

One of the largest ancient geoglyphs in the world is a tall desert god used for predicting the weather.

Towns with a resource known as "white gold," valuable enough to fight a war over, now stand ghostly and empty.

This was once the center of the Birdman cult, and is now a World Heritage Site.

In the most arid desert on the planet, the world's leading telescope allows astronomers to see more than has ever been seen before.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

The largest stone moai on Rapa Nui.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

The hellish conditions of this abandoned mine that snakes beneath the Pacific Ocean gave it its diabolic name.

What was once a unique system of urban elevators is turning into a mechanical ruin.

Pivotal home of Nobel Prize winner Pablo Neruda.

A record-breaking pool that uses computers to turn ocean water into cleaner, private swimming water.