A battle between nature and architecture in the Cambodian jungle.

A limestone wonderland of water and subterranean secrets.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Human ancestor’s 3.6 million year-old footprints.

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

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

A 125-meter long "tribute to the Brazilian people."

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

One part local history, 99 parts gruesome haunted house.