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

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

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

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

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

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

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

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

The curios of pharmacist and collector Henry Wellcome.

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

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

This South London cemetery holds the remains of more than 15,000 people.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

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

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

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

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

Replica of Seville, Spains famous Giralda, a former minaret converted into a bell tower.

The mysterious remains of a martyred teenage saint are venerated inside a small country chapel.

A 12th century church completely covered in shells.