Solvay Gas & Coke, Opened in 1906, closed in 1983. This site has sat abandoned for decades due to high environmental contamination from a whole host of chemicals ranging from arsenic to asbestos.
Important Note : Shot taken with a 24mm tilt shift right before the sun began to set which made all the colors pop! Notice how all the vertical lines are going straight up and down...this is due to the tilt shift.
Canon EOS 50D
24mm Tilt Shift Lens with a Polarizing Filter