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

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

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

These ruins of a medieval church are full of architectural mysteries.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

This hill nestled in the Scottish lowlands was a ritual site for over 4,000 years.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

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

Possibly the oldest of Britain's ancient henges is also one of its most stark.

The discovery of this Neolithic settlement, which contained a Stone Age "cathedral," threw archaeologists for a loop.

A magnificent, iconic stone tower in the Scottish Highlands.

The 5,000-year-old megalith is believed to be Scotland's tallest standing stone.

Spend the night in this formerly abandoned traditional Scottish village.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

Medicinal spa created with the discharge from a geothermal energy plant.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

Thousands of well-dressed mummies below a monastery.

Every inch of this chapel is covered in craftsmanship from across the world.