A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

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

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

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

There has been an astronomical clock on this spot since the 14th century.

The world's largest reflecting pool is just two centimeters deep.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

This massive blockhead sculpture hides an entire library.

A medieval military street hidden beneath a charming French fishing village.

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

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

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

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

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

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

This expansive bridge in the Canadian wilderness was originally just built for friends.

Visit Europe's largest subterranean waterfall, carved by water from the glaciers of the towering peaks surrounding the valley.

This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Art historians have debated the identity of this medieval stone rider since the 19th century.