A sea cave with a waterfall and Viking past

A secret door leads to this cozy dive that sells only “milk.”

The farthest northwesterly point of the British mainland is one of the most remote places in the Scottish Highlands.

A historic cave in Scotland once served as a hiding place for a famous Covenanter.

These mysterious religious carvings were once thought to be thousands of years old but are actually the work of modern eccentric.

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

The community pools that the community refused to give up on.

This ethereal, rainforest-like gorge is home to waterfalls, quaint bridges, and fairy folk.

Even after the church tried to wipe the practice out, this pagan festival lives on each year in a small Scottish village.

This macabre monument atop an ancient well gives a nod to a brutal episode in Scottish clan history.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

This series of Scottish caves has no clear purpose other than baffling historians.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

A reconstructed farm shows what life was like in Norway 1,500 years ago.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

A stunning silver lining to global warming's gloomy cloud.

Walk behind a 50-meter-high waterfall.

Walk 2,300 feet above the ground on the "Troll's Tongue."

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

An innovative attempt to break a siege in the American Civil War still scars the earth today.

Hear, smell, see, taste, and touch history at this immersive Civil War hospital.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

An eight-sided home built during a brief octagon craze in the 1850s.