This abandoned bridge over the River Irvine may be the oldest surviving railway viaduct in the world.

This remote Scottish island has the only round church in the nation.

A small stone pillar marks the spot where Mary, Queen of Scots, spent her final hours as a free woman.

A well-traveled statuette of a much-beloved village icon.

The preserved left hand of a saint once known as "the Pearl of York."

On this small spit of land, the person who runs the public house is considered the King of Piel Island.

The sole surviving large cairn in an area that was once littered with burial monuments.

In 1990, this 37-foot red steel bottle sailed from New York to England.

A tribute to a child prodigy who died way too young.

This museum offers a glimpse into early 20th-century Glasgow life.

This giant steel bear is a tribute to naturalist John Muir.

The only statue ever crafted by award-winning animator Ray Harryhausen.

In Warrington’s Golden Square, it's always tea time.

A collective artwork that any visitor to the islands of Barra and Vatersay can add to.

This tall stone wall with no door and ill-matched windows was built centuries ago, and used as a shelter for domesticated pigeons.

Believed to be an execution site used by King Arthur after he was embarrassed.

Once used to protect important Roman trade routes.

The long-lost final resting place of an accused witch.

Each section of this public work of art represents one of the city's guilds.

A statue of the heroine who stopped time to save her betrothed.

A 12th-century church that houses a dark creature.

On a corner of the Ardmeanach peninsula on the Isle of Mull, a 50 million-year-old fossil tree hides in the coastal cliffs.

A stone-filled garden in the heart of Edinburgh commemorates the father of modern geology.

Built as a training camp, this site became a detainment center for prisoners of war and German civilians during World War I.