These docile dragons are ideal inhabitants for the conservatory greenhouses.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

This plaque in one of London's oldest public hospitals commemorates the first meeting of two of Britain's most famous literary heroes: Sherlock Holmes and Dr. Watson.

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

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

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

London's largest outsider art museum.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.

A Roman spa buried deep beneath the City of London.

A living memorial to the trees London lost during the Great Storm of 1987.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

An architectural oddity hides in plain sight on this iconic London bridge.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

A lasting remnant of The Blitz.

This artificial lake surrounded by Brutalist architecture served as a stand-in for futuristic Britain in Stanley Kubrick's 'A Clockwork Orange.'

Some of the earliest leaders of the Moravian congregation are buried here.

A monolithic monument in Greater London.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

3,000 family pets and military animals are buried in this London graveyard.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

An unassuming London park is actually a pilgrimage site for modern clowns.

A mysterious shape catches the eye in this 16th-century painting.