A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

The abandoned tuberculosis sanatorium is said to be one of the most haunted places in Canada.

For over a century, it was a crucial center of mental health treatment and also the source of many local legends.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

The ruined remains of the airport Claus von Stauffenberg departed in his failed attempt to kill Adolf Hitler.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

At this faithfully preserved medina off the Moroccan tourist circuit you can walk through six centuries of history in one day.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

Five candy-colored villages on the Italian Riviera.

These pools have been abandoned for over 20 years.

This airfield is home to a number of retired vintage planes in various states of disrepair.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

Along the old Route 66 is an abandoned trading post made from old telephone poles, built by a former circus clown.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

Tucked away on an empty wooded lot in suburban Oklahoma City lie the remnants of an abandoned circus camp.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

The historic tower houses of this nearly abandoned Greek town have been compared to the spikes on an iguana's back.

This old mining town, deep in the California desert, has a year-round population of one.

The ruins of this Alaska gold mine form a gorgeous ghost town.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.