Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

Over a decade ago, painted penguins mysteriously appeared around Berwick-upon-Tweed for no apparent reason.

One of the few surviving examples of Victorian-era public toilets now houses a small homestay.

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

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

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

Take afternoon tea in a 17th-century almshouse.

The 2,000-year-old pieces of metal are an ancient soldier's military discharge papers.

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

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

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 restaurant was removed from the famed sister ship of the Titanic and placed within a hotel.

This 13th century castle is chock full of ghosts and impossibly rare cows.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

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 giant wooden treehouse within a sprawling garden has its own eatery.

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

The remains of a Dominican friary, once one of the largest of its kind in the United Kingdom.

This gorgeous space is England's largest independent library outside of London.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

This sculpture commemorates a naturalist and an illustrator whose work was a forerunner to modern field guides.

This temple was constructed entirely by Roman soldiers.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Also known as "Robin Hood's tree," this tree became a famed location along Hadrian's Wall before it was cut down in an act of vandalism.