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

This devil-dancing ceremony now celebrates a miraculous image of the Virgin Mary that appeared to a modern-day Robin Hood in a mineshaft.

This lake’s emerald green waters are a spectacular sight, but it’s not a great place for a swim.

Largest site of dinosaur footprints ever found includes more than 5,000 tracks.

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

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

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

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

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

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

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

This beautiful fountain was sculpted by a female artist who was ahead of her time.

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

This magnificent abandoned hotel has long been haunted by its Nazi past.

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

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

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

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

A tower devoted to — and modeled after — the Divine Comedy.

Stenciled handprints and wall paintings dating back 10,000 years, some of the earliest forms of cave art.

This stunning mass of ice spans 121 square miles and is still growing.

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

The rusted remains of a victim of Hurricane Ike.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.