This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

This is not your typical jungle gym.

A floating museum that was sunk by a flood and left to rot in the tides.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Less a museum than a bizarre fantasy world created by artists and engineers.

An abandoned meat mecca now serves as an excellent locale for urban exploration.

An urban forest overtakes what was the greatest failure of utopic urban housing.

The celebrated eyesore created by starry-eyed sweethearts.

Romania's triumphal arch looks out over Bucharest.

This massive underground salt mine now holds a sci-fi theme park in its depths.