A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

A historic house left in "dramatic still life."

The Columbia Road Flower Market is now open every Sunday, rain or shine.

Taxidermied animals galore, by appointment only.

Catacombs turned marketplace.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

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

Eighty million natural history specimens call this gargantuan museum home.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A famous burial ground with a history both grim and literary.

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

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

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

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

Shiny Brutalist box commemorates a pioneer of electricity and houses a railway transformer.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

A quiet memorial to those who died saving others in the heart of the City of London.