Order a boozy baba au rhum at the oldest patisserie in Paris.

A tribute shrine where the Space Invasion street art movement started.

Indents in the pavement are all that remain from a grisly death machine in Paris.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This demon atop the Notre-Dame de Paris looks utterly bored.

A phantasmagoric tomb honors a Belgian artist-scientist's contributions to the world of spooky entertainment.

France's most famous cemetery, with some of its most curious tombs.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

Even for Egyptian royalty, the afterlife was bring-your-own-beef.

If the tunes of antique organs and musical marionettes don't intoxicate you, the draft beer certainly will.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

How did a lighthouse wind up in the middle of this landlocked German city?

A poignant mural honors the heroic teenage non-conformists who took on the Nazis and paid the ultimate price.

The largest mosque in Germany.

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The final resting place of the father of American beekeeping.

The unusual burial monument of Arizona's first governor.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.