This demolished goliath of American industry once loomed over the depressed town it once made thrive.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

A remarkably intact castle that once was the largest in Ireland.

This relatively recently abandoned brewery is a tragic reminder of the continuing effects of Hurricane Katrina.

On a small Puerto Rican island, banks of secret naval bunkers lie abandoned and filled with piles of office equipment.

This huge metal monument is slowly being stripped to its concrete skeleton.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

This partially completed dam was simply abandoned after nearly destroying the city it was built to service.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

When Croatia became independent of Yugoslavia, the splintering governments left behind these concrete tunnels.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

This abandoned Belgian fortress is purposefully being left to nature.

This abandoned Croatian stronghold never saw a great deal of conflict but it is still a beloved relic nonetheless.

An abandoned cyanide mill is now a haunting magnet for graffiti and illegal parties.

This abandoned fort is said to be the most haunted place in India, so much so that entry is prohibited after sunset.

These disused steel furnaces are now haunting ruins that may one day be a national park.

This nearly abandoned plantation was once witness to an eclipse that proved Einstein's theory of relativity.

What was to be the world's most secure Cold War document vault ended up as just a few shallow caves.

The ruins of this Brazilian island prison still bear the scars of the bloody rebellion that closed it down.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.