Charleston's historic city jail once held everyone from pirates to Civil War POWs.

An archaeological treasure trove towers over the valley of Chiavenna.

This half-finished "city of toys" was almost Italy's own Las Vegas.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

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

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

An eerie, derelict amusement park in Berlin.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

Helped by a surprise posthumous donation this small town toy museum features over 5,000 vintage playthings.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.