A battle between nature and architecture in the Cambodian jungle.

The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

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

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

A stunning landscape of bunkers that once stored chemical weapons.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This abandoned motel doesn't welcome guests anymore, but decay and a creepy atmosphere still call it home.

A trash dump made beautiful by nature's power.

A local dialect born in the late 19th century is only spoken in this isolated California valley.

Its dark depths conceal millions of rare, delicate crystal formations.

Eclectic collection of dark and macabre antiques.

The largest drain hole in the world.

This historic California cemetery holds the bodies of veterans of both the Civil War and the Donner Party.

California's own majestic geyser is powered by a subterranean volcano.

A veteran Disney animator turned his gift for storytelling to a museum devoted to his love of a California city.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

Internationally-recognized arts center housed in a century-old former military barracks.

Oakland's beautiful monumental cemetery.