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

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

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

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

One of Chile's most active volcanoes is riddled with beautiful caves.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

These termites have an large and deadly abode—impressive by day, dazzling by night.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

You feel like you're in a forest, but you're actually walking amidst the branches and trunks of a single giant tree.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

This red lake 4,000 meters above sea level is home to rare flamingos.

Death road of Bolivia.

A valley of unique erosion patterns lends to a view like nothing on Earth.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

A seemingly endless landscape of pure salt stretches far across Bolivia.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

A retiree's challenge to build an outdoor wonderland out of trash.

An intriguing antique iron Ferris wheel that most locals are sure was designed by Gustave Eiffel.

Trash-filled shrines to an unofficial saint known for her endless breast milk dot the highways of Argentina.

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

A beautiful young girl said to have been buried alive in her coffin…

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.