This former railway facility is the oldest in Slovenia, and now houses a museum showcasing the history of steam locomotives.

An overgrown and abandoned tuberculosis ward resides in the midst of a quaint modern neighborhood.

This abandoned villa of makeshift buildings was once the home of dancer Elis Sinistö.

Not far from a popular beach, an unfinished, abandoned mansion for Bulgaria's last communist dictator.

Fortifications built for a Soviet invasion that never came now sit abandoned in a losing battle against nature.

Abandoned in 2009, this once popular resort destination now stands frozen in time.

This abandoned gold mine found a second life as a post-apocalyptic film set.

An abandoned skate park located in the middle of the wilderness.

Once the central jail for Los Angeles, this building housed inmates like Al Capone, those arrested from the Zoot Suit and Watts Riots, and individuals imprisoned for their sexuality.

This enormous abandoned factory is now a makeshift graffiti gallery.

An abandoned observatory in the middle of the Illinois prairie.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

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

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

A ghost town originally established and governed solely by Black Americans seeking a place of their own, free from discrimination.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

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.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

A lawless town deep in Death Valley was famous for its riches and death rate.

An abandoned town is hidden in Great Smoky Mountains National Park.

When he found his hometown was no more, Lowell Davis decided to recreate a "new" ghost town from scratch.