Spend the night in this formerly abandoned traditional Scottish village.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

The smallest pub in Britain was once a cabinet of curiosities and it still has the dead cat to prove it.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

This resort community was known as the "Black Eden of Michigan."

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

This network of narrow, medieval passages has the most delightful name.

The undercroft is a spectacular example of medieval Cistercian architecture.

This small museum is an eccentric shrine to boyhood in the 1960s.

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

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

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

A tribute to a man who defied the Nazis until his last breath.

A daily replay of the experiment that proved the rotation of the Earth.

Burbling away in refrigerators are 105 sourdough starters from around the world.

A New Zealand rubbish dump named after British comedian John Cleese.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

Two pillars set 10 paces apart commemorate the "last notable American duel."

A tribute to the incredible generosity the Choctaw Nation showed the Irish people during the Great Famine.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.