Known as the site of 'El Dorado,' this mysterious lake is rumored to hold gold beneath its waters.

A three-tiered waterfall plummets from a mountain cave with amazing views over the countryside.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

This tiny shop has been serving traditional tamales for more than 200 years.

The world's tallest palm trees look like the whimsical kind of plant you'd find in a Dr. Seuss story.

Cathedral carved out of salt, located a mile below the earth's surface.

An ancient city hidden in the heart of the Sierra Nevada mountains.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

Colorful lights and mirror-like brine pools create trippy illusions within the historic mine.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

Enchanting cave with a river crashing through the roof.

Unparalleled stargazing, one of Colombia's best observatories, and a swimming pool can all be found in the middle of this ancient tropical forest.

The Andean town where every single building is decorated with a brightly colored frieze.

This picturesque mansion has gone from opulent ruin to nature museum.

A dangling church built over a Colombian gorge.

An explosion of natural color known as "the river that ran away from paradise."

This Belgian theme park began as a refuge for bored church children and was closed down when a boy lost an arm.

Abandoned since 1998, this train station has become an oasis for urban explorers.

This old, abandoned hotel offers magnificent views.

This ghost town in Belgium will lose its street art when it ceases to exist.

The clients of these mysterious hand-crafted funeral cars took their last ride in style.