Used as an example in one of the first dictionary entries for "museum" in 1706.

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

Chelsea's soldiers were given strict orders when crossing this historic bridge.

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

This ancient Egyptian obelisk still bears the wounds of World War I.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

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

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Two plaques commemorate the site of Shakespeare's first theatre.

Pop culture has helped to keep this iconic British building from being destroyed.

This coffee shop lies hidden beneath a historic church.

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

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

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

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Scattered throughout London are ancient remnants of the city's former bounding wall.

This hidden green space is the city's second largest conservatory.

Hear the quietest sound from across the dome.

An incarceration museum on the spot of possibly the oldest prison in England.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

One part local history, 99 parts gruesome haunted house.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.