A secluded, little-known temple hidden amid the dense jungle.

One of the biggest markets in Asia, under one of the continent's largest domes.

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

Bombed and burned, this monument represents the often controversial ties between Vietnam and Cambodia.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

A vaudeville performer mounted this hollowed-out redwood log onto the chassis of a truck, and toured the country spreading a message of conservation.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

An optical illusion found amid a logged redwood forest.

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

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

Here, visitors can swing with the waves of the Pacific Ocean.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.