Abandoned bull fighting ring, slowly falling apart in Uruguay.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Yugoslavia's biggest underground airport lies in ruins.

Abandoned Soviet base once stocked with short and medium range missiles pointed at western Europe.

Disused penal colony features prisoner artwork, some sketched in human blood.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

Abandoned Coast Artillery fort now serves as graffiti canvas and sightseeing vantage point.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

An abandoned relic of the city's failed experiment with below ground transit.

A nuclear power plant abandoned along with an international allegience.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

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

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

A beautiful deserted greenhouse in the middle of a park.

Abandoned soda factory on a Cambodian roadside in a state of beautiful decay.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

Abandoned power station once home to a squatter community, now being developed into an arts center.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

Villas that once served as playgrounds for the rich now fall away in decay.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.