An ancient irrigation system that turned arid deserts into oases.

One of the most spectacular canyons in the world.

Within the Dadès Gorge, amazing vistas and towering cliff faces can be seen at each new curve and bend in the road.

Morocco's largest Jewish cemetery.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Death road of Bolivia.

This likeness of the famous revolutionary is entirely made of recycled scraps of metal.

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

Museum dedicated to the sacred leaf of the Andes.

Mysterious Incan ruins on a tiny island in Lake Titicaca.

An ancient Incan convent on Lake Titicaca's Island of the Moon.

Over a millennium ago, this site on the shores of Lake Titicaca was home to a city of more than 10,000 people.

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.

This mesmerizing architectural wonder will take your breath away with its unusual color patterns.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

This elaborate temple was built around one of the Buddha's teeth.

A quick and simple solution to Cambodia's train woes.

A gruesome memorial for those lost in this area during the Khmer Rouge genocide.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.