This remote fort on the Yukon River is a vestige of the wild Alaska gold rush.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

Abandoned businesses, homes, and rusted cars are all that remains of this stopover town.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

A fake block of cheese remembers a feat of dairy engineering from the Chicago World's Fair.

At this monastery, monks make raw-milk cheese and use excess whey to create methane that powers their hot-water system.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The cheese slicer may be a Norwegian invention, but the biggest ones in the world are found in Sweden.

This site is both a remarkable reminder of the town's mining history and a fantastic government blooper.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

A winding path built in secret on the edge of the continent.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

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

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

In the mountains of West Virginia is this perfectly preserved Art Deco train station.

Although it has never been a secret ninja base, this shrine still has plenty of tricks up its sleeve.

During the holidays, a vintage subway train whisks New Yorkers back in time.

An abandoned village, frozen in time by the threat of a landslide.

This supermarket offers shoppers a window into the past alongside their groceries.