Abandoned anti-ballistic missile base.

This once luxurious Catskills resort is now a haunting ruin.

A once-luxurious, now abandoned hotel in the Italian Alps.

This notorious Canadian mental institution was home to some of the first LSD experiments and origin of the word "psychedelic."

A Canadian POW for German soldiers during WWII where prisoners hatched an elaborate escape plan.

An abandoned Victorian-era amusement park is rusting away amidst luxury houses.

Historic psychiatric asylum and most-filmed location in the Great White North.

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

Infamous and now demolished panopticon prison built by its former inhabitants.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Abandoned medieval hill town.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

The glowing blue Nymphaeum of Emperor Tiberius.

Geothermal waterfalls in Tuscany.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

The abandoned remains of this Victorian brewery hide crumbling bowling alleys and rusting industrial gear.

When German-Iraqi relations broke down, this embassy was vacated post haste.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.