This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

This French colonial post office is arguably the grandest in all of Southeast Asia.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

Khmer Rouge's high security prison.

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

This church on a Tohono O'Odham reservation has stood since 1797.

This once-booming Gold Rush town is now home to a herd of feral donkeys.

Stairs often replace streets on the steep slopes of this old mining town.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

During World War II this was the site of an "honor camp" used as a prison for draft dodgers, Native American conscientious objectors, and Japanese-Americans—including a man who brought his case against the camp to the Supreme Court.

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

Limestone caves with spectacular showcase chambers.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.