At this studio, musicians, engineers, and quite possibly a music-loving ghost carry on Puerto Rico's musical traditions.

This beach pool offers a spectacle of crashing waves, blue hues, and a historical lighthouse.

Archaeological sites and great food inside the island's largest mangrove forest.

An unnatural lake in a naturally beautiful setting.

Invading U.S. troops were first seen from this now-abandoned tower, leading to the Spanish-American War.

A place to pay homage to Taíno heritage.

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

A monument to the love people have for their pets.

This print shop boasts one of the largest pinball arcades in San Francisco.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

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

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

This former steel and coal plant is now a neon-lit industrial fantasia.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

A haunting collection of the vanished and disappearing natural world.

This former sugarcane transport tunnel is now a portal to a lovely beach.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

The only museum of sake in the United States is nestled in an unlikely California college town.