This recessed garden protects thousands of mountain plants by creating its own microclimates.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

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

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

An ancient ossuary in Rouen.

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

His "Lionheart" is entombed separately from the rest of his body.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

Folklore and history carved into Brittany's coast.

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

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

Lady Liberty's original designer installed a little clone in this French fountain.

A beautiful lighthouse with as many steps as days in the year, as many windows as weeks, and as many levels as months.

On this romantic tidal island reachable only at low tide the tomb of a famous French writer overlooks the sea.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

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

An image of the legendary saint stands in the shadow of a cathedral she liberated.

This 12th century, partially destroyed, abbey has had several owners and was seized during the French Revolution.

These unique markers designate the route American forces took during the Liberation of France.

In France, a medieval-style home pays homage to an intrepid explorer who discovered Québec.

Soaring over the Niagara Whirlpool since 1916.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

One of the largest underground systems runs under Canada's largest urban center.

This "Palace of Purification" has made many film appearances as a dark and sinister headquarters.