An ice field known for harboring an infamous Martian meteorite turned out to contain the oldest air on Earth.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

This Pringle-shaped ledge makes for the perfect photo op.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

The ghost town that ended up on Ebay.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

Walled family complexes in Southern China.

270 million year-old forest of stone.

This once-booming oil city is now a relic of the region's industrial past.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

A museum and memorial built amid the rubble of a town obliterated by nature.

Snow-capped peaks, colorful waterfalls and stunning vistas on the edge of the Himalayas.

Nassau Hall has served as army barracks, a museum, and played a key role in the American Revolution.

Buried beneath the New Mexico sands are believed to be millions of copies of Atari's E.T. video game.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

A tunnel with windows, so you don't miss out on the impressive views.

The unusual patterns in this rock formation result from two distinct modes of weathering.