Extraordinary rock formations in open Peruvian fields.

A colorful Peruvian city of the dead.

A jungle cave in Peru of unknown depths, otherworldly sounds, and strange nocturnal birds that navigate by echolocation.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

Strange sandstone canyon known as the "place broken by itself."

Abandoned city hidden from the world by tropical forest and isolation on the coast of Kenya.

A salty red wasteland in Tanzania is a breeding spot for endangered flamingos.

Zambia's smallest national park is home to one of the world's largest annual mammal migrations.

A hollowed-out baobab that became the horrific final resting place of leprosy sufferers, with gruesome evidence to prove it.

An exquisite and eclectic selection of African masks stands out within a massive woodcarving marketplace.

This short pedestrian span is also known as the "Fairy Walking Bridge" because it looks almost magical.

This sensational Chinese temple walks visitors through the 76 weird departments of the afterlife.

A clay house decorated with ceramic chips in Tianjin.

Unique geological formations in China, featuring some suggestive shapes.

China's mysterious record-setting sleeping Buddha.

A canvas of crops grow from vibrant red soil in this terraced farmland.

The western-most fortress on the Great Wall of China has gone from a strategic stronghold to a kitschy tourist carnival.

A bright turquoise river cascades beautifully down stepped terraces in southern China.

The tiny statues form China's only known terracotta army from the Han dynasty.

At nearly 1,000 feet long, this astonishing glass suspension bridge is one of the longest in the world.

A fifth-century temple improbably built into the side of a cliff.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

A total of 999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

The latest in a series of long glass bridges suspended at terrifying heights.