The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

A museum marks and documents the site of the Titanic's launch.

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

This neon sign is an homage to an Alfred Hitchcock film.

A solemn memorial in a majestic setting that honors a 1692 tragedy.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

This historic timepiece was a popular meeting place for romantic rendezvous in the 1960s.

The last remaining bottle-shaped kilns in Scotland stand alone in an Edinburgh suburb.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

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

An artist's whimsical transformation of everyday objects.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

A pub that is literally in the middle of nowhere, but continues to do business.

Largest lake in Great Britain measured by surface area.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Now home to a drinking establishment, this building has a macabre history.

A sweet symbol marks the place where torturous executions were once carried out.

This 16th-century house tells the city's history through old artifacts and quirky tales.

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

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

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

An unsanctioned shrine that sprung up outside the late singer's home is causing a stir in London's Highgate neighborhood.