This Belgian theme park began as a refuge for bored church children and was closed down when a boy lost an arm.

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

The mouldering remains of a disgraced British children's icon are hidden in the brush of a public park.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

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

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

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

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

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

This abandoned five-star hotel is now a five-star urban exploration destination.

Austria's very first and only nuclear power station was completed but never used.

This former Cyprus flight hub is now a crumbling, abandoned ghost complex.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

An abandoned subway tunnel that could have reinvigorated Staten Island still lies somewhere beneath this Brooklyn park.

This Belgian palace was long the domain of priests and aristocrats but is now being turned into an art commune.

This abandoned airplane hanger is said to have once been a top secret launch facility.

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

Once the nail factory shut its doors, this Swedish factory town was abandoned, leaving behind a modern ghost town.

One of the largest barracks of the Austro-Hungarian monarchy's military is now an abandoned ruin.

This abandoned subway station can still be seen on regular commuter trips.