Museum about life, death, and cannibalism in the Stone Age.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

A fantastic castle rumored to be the birthplace of King Arthur.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

The sign at the garden gate reads: "These Plants Can Kill."

The ruins of a medieval seminary some say is the oldest university site in Scotland.

What happened to the three lighthouse keepers who vanished from this place remains a mystery over a century later.

A magnificent, iconic stone tower in the Scottish Highlands.

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

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

Spend the night in this formerly abandoned traditional Scottish village.

The rusting remnants of a flying boat lie scattered near the site of its fatal crash.

The ruins of a defunct limestone quarry still haunt this Scottish promontory.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

An ancient stone wall formed by lava that was a frequent stop during funeral marches.

Where the sleeping monsters of Scotland's oil industry are left to rust.

The most loyal of little dogs, or a Victorian era publicity stunt?

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

This huge concrete map of Scotland was built as a thank you gift from a Polish soldier.

One man spent 10 years building a spectacular section of road because no one else would.