A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

Hear the quietest sound from across the dome.

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

Public access to clean drinking water was an instant hit among the masses.

On the eve of a condemned prisoner's death, this bell rang 12 times outside their cell.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

The pockmarks across the building's facade are remnants of the Blitz.

Charles Babbage's proto-computer, painstakingly brought to life.

The final resting place of a German diplomat's beloved companion.

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

This luxury shopping lane has been protected by its own tiny police force for over a century.

The beloved beast's taxidermy remains sit in the Natural History Museum's cafe.

Repository for more than 22 million pickled specimens.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.

A clock designed to run with perfect accuracy for 10,000 years.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

The bones of two medieval royal lions were discovered at the historic fortress.

A tribute to an explorer and naturalist often overlooked by history.

Eighty million natural history specimens call this gargantuan museum home.