A relic from one of London's worst 19th-century slums.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

The Tudor-style cottage in the middle of the square is not quite what it seems.

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

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

The most loyal of little dogs, or a Victorian era publicity stunt?

This one has sailed five times as far as Sir Francis Drake's famous ship.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Giant, friendly pelicans in Central London, the most unlikely of places.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Hear the quietest sound from across the dome.

A fantastic castle rumored to be the birthplace of King Arthur.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.