Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

France's high-tech, future-themed amusement park.

Peeing dogs guard the Roman hunting goddess atop a fountain at France’s Château de Fontainebleau.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

What if all public housing projects had been designed by "the Pygmalion of modern architecture," not only their prototype?

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

A chapel on a volcanic core, marking the end of a successful journey.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.

Cozy basement bar sports an inventory of over 2,000 beers.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Five candy-colored villages on the Italian Riviera.

Go inside to really appreciate this 500-year-old technological masterpiece.