These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

This famed Silk Road oasis was one of the largest cities in the world before it was destroyed by a Mongol horde.

The garage at the childhood home of Steve Jobs was a hangout for the founders of Apple, even if they never built computers there.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

Eulogizing an unknown man's unusual demise.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Rippling sand dunes frozen in the Arizona rock.

Dramatic river bend surrounds a natural red-rocked pedestal.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

Abandoned Japanese ghost town gives a glimpse into what our own metropolises may leave behind.

Climb atop one of the world's longest and heaviest trains for an unbelievable journey across the Sahara Desert.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

A 605-page Quran penned in the blood of a dictator is locked away in a mosque.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

Once a black market electronics marketplace, now an otaku shopper's paradise.

The final resting place of the "father of special effects."

This serene wooded hilltop has a dark history as the climactic point of the Swedish witch trials.

This remote stretch of sand is a penguin lover's paradise.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

This ordinary set of steps is a must-see destination for fans of a certain romantic anime.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

An abandoned colonial French prison notorious for its hellish conditions.