A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

A tall smoke stack and boarded-up buildings are all that's left of the pioneering plant.