The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Neo-cave art on the macro scale.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A battle between nature and architecture in the Cambodian jungle.

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

Khmer Rouge's high security prison.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

Two identical statues by Fernando Botero, one blown to pieces in a terrorist bombing, the other donated as a gift for peace.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

Cathedral carved out of salt, located a mile below the earth's surface.

The world's tallest palm trees look like the whimsical kind of plant you'd find in a Dr. Seuss story.

Unparalleled stargazing, one of Colombia's best observatories, and a swimming pool can all be found in the middle of this ancient tropical forest.

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

Museum dedicated to the sacred leaf of the Andes.

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

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

The celebrity luchadores of La Paz are tough ladies in traditional petticoats and braids.

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

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.