A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

There might not be much left of these Irish ruins, but their linguistic legacy is still going strong.

The stones of this formerly witch-obsessed castle were used to build a church.

A small but immensely extravagant palace built by the "Night King."

The fairy tale castle of the "fairy-tale king."

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

This remote castle was built to be a wealthy businessman's palace of vice but is now simply a historic vacation cottage.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

This foolish Victorian sea fort was converted to a deluxe hotel.

Detroit’s downtown castle is one of the oldest structures in the city.

Collective made up of artists, musicians, and activists.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

Perhaps the most beautiful of preserved saints, with a little help from Paris.

Despite centuries of architectural innovation, this French castle is being built like it's the 13th century.

This ancient burial mound is accessed by an impressive Greek-built archway.

It's always summer at the beach inside this former airship hangar.

The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.