This impressive clifftop temple was once at the center of an international custody dispute.

A battle between nature and architecture in the Cambodian jungle.

A non-profit that uses the impressive smelling abilities of African Pouched Rats to find and clear unexploded land mines.

A small 12th-century temple surrounded by waters believed to have curative properties.

More than 100 Hindu temples are slowly being swallowed by the forest.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Under Hanoi’s medieval citadel sits a secret military headquarters from the final years of the Vietnam War.

This striking landscape in northern Vietnam contains both geological and archaeological wonders.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

These ruined Incan mausoleum towers still bear carvings of sacred animals on their blocks.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

In the upscale neighborhood of Miraflores in Lima, a pretty little park is home to dozens of cats.

This stone complex marks the urban center of a lost civilization.

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

A bright little alley in La Boca is a part of tango history.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

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