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

A French valley with forests so lush it was nicknamed "the Small Amazonia of the Pyrenees."

Science fiction's grandfather has a fittingly marvelous tomb.

Historic medieval fortified city in southwest France.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

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 14th century bridge built as a fortress, where the devil lurks on one of its towers.

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

Ancient paintings known as the "Sistine Chapel of Cave Art."

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

One of the great treasures of Neolithic art lies within this carefully constructed pile of rocks.

Was the ravaging reptilian that terrorized this village a dragon, or an escapee from a London menagerie?

Leonardo da Vinci was one of many to find inspiration in this unique, rocky landscape in Tuscany.

These waterfalls can be twins or triplets, depending on how much it's rained recently.

Drift through underground caves on a tube.

Built some 700 years ago, this Taíno ceremonial site features ball courts, petroglyphs, and evidence of ancient astronomy practices.

Experiencing Guatemala's sensory-exploding church is a blunt reminder of European influence.