This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

Watch the newest land on the planet form before your eyes.

This legendary urban waterfall creates a dazzling display of rainbows.

The world-record holder for the longest bridge stretching continuously over water.

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

Former hunting lodge of a duke who was an avid collector of impressionist works.

This bridge was constructed from the rubble of the infamous Bastille.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

The famous winding walk at Chartres is surrounded in mystery and myth.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

This spectacular track has run continuously since 1882.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

This extensive collection covers thousands of years of Polish military history.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

This biographical museum honors the groundbreaking scientist at her birthplace in Warsaw.

This bell stars in a tragic love tale and is said to make wishes come true.

This enormous 32-foot painting depicts Poland's greatest medieval battle in glorious detail.