Long before mobile phones or GPS were available, these sentry boxes provided help for motorists in need.

This mural honoring a drowned village has become a symbol of Welsh pride and patriotism.

In 1977, an eccentric book lover formed a micronation for book lovers.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

A doctor had this large tub carved into rocks to facilitate easier seawater bathing.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

6000-year-old site covered in more than 50 megaliths.

Unusually, this ancient Iron Age broch has never been excavated.

The carved medieval stones stand near the ruined abbey's parking lot.

These ancient symbols freckling a Scottish cliff remained hidden for centuries.

The sign announces the Scottish village's cosmic connections, as it's twinned with Glenelg, Mars.

Originally intended as a temporary installation, this sculpture is now a permanent part of a stunning Scottish beach.

Legend says a witch conjured the world's third largest whirlpool to protect Scotland from a nasty pirate.

Believed to be the birthplace of John Balliol.

The longest staircase lock in Britain.

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

From here, the loch appears to take the shape of mainland Scotland.

A private home envelops the ruins of this 13th-century priory.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

Every September, international competitors flock to the flooded quarries of a tiny Scottish island.

This 1,300-year-old marker is one of the finest and most complete early Christian crosses in Scotland.

A bay of elaborate, historic toilets are held in high esteem at this Scottish dock.

Dating back to the 500s, these stones include some of the oldest Christian memorials in Scotland.

This ruined 15th-century hermitage is steeped in myth and mystery.