An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

At 238 feet above the bottom of a gorge this span is known as the biggest thrill on the road to McCarthy.

The ghostly remains of what was once the world's richest copper mine.

This whimsical stacked cabin looks like something out of a children's book.

Four-story concrete hotel never opened to customers.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

A million and a half tons of earth were used to create one of the world's largest land sculptures.

Huge winged monument in the United Kingdom.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A massive, secret marina for the Nazis' most formidable weapon in the Atlantic.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

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

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.

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

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.