An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

Site of one of World War I's most horrific scenes.

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

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.

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

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

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

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

What was once England's second-richest abbey is now a haunting ruin.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

The last resting place of the famous Native American princess is marked by a haunting monument.

Seat of the Duke and Duchess of Devonshire for centuries.

A six-ton wedding present for the King of the Scots.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

This disused Cold War bunker has been restored to all of its early 60s glory.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

This skewed English house has looked like it's going to fall over for centuries.