This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

A hunk of prehistoric lava rests amid the Gothic architecture of a campus quad.

Legend says this little-known stone circle is formed from people petrified as punishment for dancing on the Sabbath.

Giant statue of a disembodied head.

A giant wooden soda bottle pays homage to a distinctly British drink on the very spot where it was invented.

This mysterious hilltop collection of Druid carvings isn't quite what it seems.

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

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

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

Huge winged monument in the United Kingdom.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

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

A six-ton wedding present for the King of the Scots.

The first archaeological site discovered by aerial photography.

A whale's jawbone and a malfunctioning harpoon welcome you to the village of Bragar and its lore.

Europe's largest prehistoric mound – burial site of a legendary king?

Grotto replete with mystical designs laid out in glued shell mosaics.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

This Scottish burial tomb once held hundreds of ancient eagle bones.

Enter the world under the hill at this ancient UK burial chamber.

More stones than Stonehenge, all scattered within a windswept landscape sure to enchant 'Outlander' fans.

This tiny island featuring 9th-century Viking ruins is only accessible at low tide.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.