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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A small but industrious mining operation that allows visitors to touch precious gems while they are still in the rock.

Enormous lake at the bottom of a unique cave system.

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

This beautifully deceptive waterfall is something far different from what it appears to be.

An Australian lake whose pink hue defies scientific explanation.

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

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

A forgotten monument to Yugoslavian freedom.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A magical world of elves and fairies tucked amongst the trees in Colombia.

A scalable map of Colombia with the bonus of a butterfly house.

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

A dangling church built over a Colombian gorge.

Astronomical observatory above Lake Titicaca.

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

Death road of Bolivia.

Bolivia's needle-like rock formations.

A swing to dangle you off the very edge.

The Uros people live on floating reed islands in lake Titicaca.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

An unexpected desert oasis in South America.