Ever hear of the Milazzo Cage?

Arrr! The most authentic collection of pirate artifacts in the world... matey.

Housing a morgue, rare and confiscated weapons, and autopsy remains, the Vancouver police museum displays the dark side of Canada.

Macabre museum devoted to historical Viennese murders.

Former headquarters of the KGB.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

A former imperial sea-fortress and Soviet prison.

Tiny castle in the middle of the Rhine made you pay to pass.

Museum preserving torture methods from the past.

Storage warehouse of the rich and famous.

A fantastic castle rumored to be the birthplace of King Arthur.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

A mysterious castle built as a monument to lost love.

An unusual manor of stunning beauty, born out of a crippling disease.

A historic bridge with a lovely acoustic anomaly.

The oldest hall in Iceland was written of in the Sagas and features a centuries-old escape tunnel.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

This aging storage facility is the world's largest brick warehouse.

The oldest church in Iceland is one of the few to feature ornate decoration.

London's Victorian Tower of Babel.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

A writer's tiny retreat built from salvaged shipwreck timbers.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

This graffiti-covered bridge is the quintessential vision of a place for disillusioned youth to escape the complexities of burgeoning adulthood.