The earliest known map to show America, discovered by accident at a Paris bookshop.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

An abandoned asylum where patients have been forgotten but their possessions remain.

Geological storytelling.

Mysterious Spanish catacombs of unknown origins.

An outsider folly near Madrid.

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

Devastated landscape used for hundreds of years by the Romans as their primary mining site.

A fascinating insight into daily life in the Eastern Bloc.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

When German-Iraqi relations broke down, this embassy was vacated post haste.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

This conical hill was built as a testing ground for an engineer known as the Glider King.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

Berlin's old airport.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

Art and armour fill every inch of this rich kid's Italian villa.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

A heavenly experience, right here on Terra Firma.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

Amsterdam's Red Light District leaves little to the imagination.