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

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.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

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

Quirky water tower advertises the long-gone Brooks Tomato Products Co.