Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

One of the most extreme deserts in the world, these snow-free valleys harbor life, despite the hostile environment.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

The remains of what was the most important religious complex in coastal Peru for over a millennium.

The world's fifth tallest waterfall is a spectacular silver chute of water that cuts through the cloud forest in northern Peru.

This massive redwood tree has a hole in the base big enough to drive through.

Deep below the dry landscape of Bahia, a cave with intense blue water to float in.

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

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

America's oldest archaeological site or a muddled case of wishful thinking.

A 15th-century granary that played the role of futuristic slave quarters in the world of 'Star Wars.'

An 80-year-old house built out of newspapers.

One of the largest statues in Israel was erected to protest pollution.

A lonely chimpanzee lures you into a narrow alley leading to this hidden shrine.

Ancient site of Mongolian Shamanism located near a road leading out of Ulaanbaatar.

An enormous, inside-out glass globe built in 1935.

A snapshot of the city's fascinating voodoo culture.

Half of a waterfall goes into the river while the other half seems to disappear.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The most unique castle in all of Southern California, entirely constructed from repurposed materials.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

An abandoned town centered around a paper mill powered by a large waterfall.

An ancient Viking village in North America that predates Columbus by 500 years.

This bridge was designed to connect a road that never came to fruition.