Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

A rather grand, but tiny, folly on the banks of the River Wear associated with a Polish count.

An unusual stone chair can be found on the banks of the River Wear, not far from Durham Cathedral.

These lamps were created to expel sewer gases after an event known as The Great Stink.

Hundreds of years ago, this lion-shaped door knocker could help a person accused of a crime find temporary safe haven in Durham Cathedral.

This library dates back to the late 17th century and was one of the first public lending libraries in England.

Take afternoon tea in a 17th-century almshouse.

A monument with a strange legend involving a horse's tongue.

Locals affectionately dubbed this World War I memorial "Tommy."

The fossilized trunk of a tree that grew around 320 million years ago.

19th century tunnels burrowed under Liverpool.

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

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

Legends surrounding this megalithic tomb range from giants to a dwarf named Trollid.

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

When a missile testing site was proposed near this site in the Outer Hebrides, this statue was commissioned in response.

This Swedish astronomical clock was in storage for almost a century before its glorious workings were put on display once more.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

This cobblestoned medieval-style town was entirely constructed in the 1990s and 2000s.

This chimerical bridge/tunnel appears to dead end right into the sea.

A modern, secular take on a traditional Virgin Mary motif.

Puzzles within puzzles hide a golden treasure in this hedge maze.

A miniature village mimics the surrounding buildings so well it includes itself.

The alleged birthplace of Lady Jane Grey, who was executed at age 16 for claiming the throne of England.