Though this bridge was originally built in the 12th century, only one of its 10 arches dates back that far.

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.

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.

Take afternoon tea in a 17th-century almshouse.

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

An abandoned tower once used to study the cosmos hides within a thicket of greenery.

This bronze statue stands throughout the year and illustrates an urgent message about the environment.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

This statue includes the molehill that toppled a king.

William Smith's iconic "map that changed the world" is hidden behind a curtain in the Geological Society building.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

The collection contains over 25,000 items and details the painful dental practices of the past.

This five-star hotel was originally a swanky parking garage.

The next-door homes of two very different musicians, George Frideric Handel and Jimi Hendrix.

The townhouse where the English poet created some of his most influential work has been preserved in tribute.

Heralded as the oldest statue in London.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

A commemorative plaque at the door pays tribute to an "American Patriot" known for his betrayal.

Tucked away behind the mansions of Mayfair, this picturesque garden is a hidden London treasure with a spooky past.