Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Drift through underground caves on a tube.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

This colorful gate stands as an entrance to the walled city of Old San Juan.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

The world's brightest bioluminescent bay.

This magnificent Cincinnati graveyard is also a popular public park.

A curious friendship between two inanimate ladies.

A way to take your secrets to someone else's grave.

A heartbreaking monument showing the last morning in the life of Jane Griffith.

The painter who popularized "bulls" and "bears" as symbols for the stock market didn't get a proper headstone for over a century.

One of only two remaining Victorian-era greenhouses in New York.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This tiny home was originally a narrow alleyway.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

A park where people have been going to feed friendly pigeons since the 18th century

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

The first of Lancaster's "rural cemeteries."

Marvel at the opulent Art Nouveau interior while dining on dirt-cheap French classics.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

Paris' linguistic guide to the international language of, yes, love.