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

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

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

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

This monument to those fallen in the World Wars is accompanied by a U-boat that Germany bought for a Deutsche Mark.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

Take a walk in a recreation of ancient Rome.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

The last bastion of Roman presence north of the Alps looms over a German town.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

One of downtown Berlin's last reminders of its Communist past.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Berlin's old airport.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

This historical Netherlands fortress still bears the marks of its single siege.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

A beautiful maze marks where three countries meet.

The largest airborne operation in history was launched to capture this bridge.