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

The world's only pure blue lizard lives exclusively on this secluded tropical island.

The colonial city's social history is reflected in its fanciful door knockers.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Three hundred illuminated pillars form an “artificial forest” in Medellín.

Perched atop the highest hill in Cartagena, this 17th-century convent offers spectacular views of the city.

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

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

A little known Colombian theme park of giant curiosities.

A dangling church built over a Colombian gorge.

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.

This enchanting rainforest hotel looks as though it grew from the forest itself.

A beautiful deserted greenhouse in the middle of a park.

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

A mysterious architectural gem in one of the most elegant areas of Buenos Aires.

The narrowest house in Buenos Aires is less than 10 feet wide.

A vibrant street away from the typical tourist track, lined with colorful, mosaic-covered houses.

This Argentinian hedge maze is an intricate tribute to a famous surrealist author.

One family's mission to exemplify sustainability took on a whole new life as a surprisingly beautiful home.

A Swiss man built this airstrip for aliens because a UFO captain telepathically told him to.

A brightly colored natural bridge formed by mineral-rich hot springs high up in the Andes.

The most southern point you can drive to in the Western Hemisphere.

This giant power line tower is a robot that can express its moods in neon.

An Argentinian businessman facing terminal cancer built this whimsical medieval village using salvaged materials.