Seat of the Duke and Duchess of Devonshire for centuries.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

A dramatic sculpture high up in Yorkshire with vistas on an industrial scale.

Once a farm where patients tilled the soil, this asylum lost its workforce when overmedicating became common practice.

This giant weaving shuttle celebrates Lancashire's importance during the Industrial Revolution.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This gruesome biblical parade celebrates the one day a year that a bit of Jesus' blood turns to liquid.

Explore 400,000 years of humans' "battle against darkness" in this offbeat but thorough lamp museum.

Christ's blood preserved in a Belgian town.

A surreal statue honoring Prague's favorite literary son.

An existential riddle in the world's largest ancient castle.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

A musical instrument played by the sea.

Iceland's tribute to its thankless civil servants.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

This stunning concert hall has become a symbol of Iceland's national recovery.

This tiny museum's sizable collection is jammed into a former underground public toilet.