This pier made of ice and constructed over the Antarctic winter is used when the resupply cargo ships arrive in summer.

A group of college students hauled a desk up a mountain more than 40 years ago. The notebooks inside have become a makeshift time capsule.

This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

The highest bridge in Myanmar was once the tallest railway bridge in the world.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

For nearly 50 years this airplane that crashed during World War II remained missing in the remote Australian backcountry.

Opened in 1956, the first modern indoor shopping mall in the world was inspired by the shopping arcades found in European cities.

Part of a highway network meant to connect Miami to Montreal, this 10-mile stretch of road made from red bricks is still around 100 years later.

The world-record holder for the longest bridge stretching continuously over water.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

The remains of a doomed Antarctic plane, buried beneath layers of ice and snow, await those willing to do a bit of digging.

The highway's southernmost spot is a beloved local attraction.

This lake’s emerald green waters are a spectacular sight, but it’s not a great place for a swim.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

Just saying the name of this town out loud is said to bring bad luck.

This dramatic rail curve was once the target of a failed Nazi attack.

This extremely remote border crossing was closed to prevent smuggling and looting.

At the point of oceanic inaccessibility, you can't get farther from dry land without leaving the planet.

One of the most ethnically diverse spots on the planet.

See just what life was like in a 19th-century prospecting town.

The ghostly remains of what was once the world's richest copper mine.

An abandoned Soviet-era mining town in the mountains of South Kazakhstan.

The Arctic Archipelago is home to world's largest third order island: an island in a lake on an island in a lake on an island.