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

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

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

Artists and musicians now rule over this former rail station.

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

Abstract dinosaur models in London.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

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

Repository for more than 22 million pickled specimens.

A little slice of Japan and its aesthetics in London's Holland Park.

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

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

The final resting place to 300 Victorian-era pets hides inside the city park.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

A hands-off space for graffiti artists to hone and display their skills.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

Eighty million natural history specimens call this gargantuan museum home.

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

A kaleidoscopic warehouse-maze of handmade neon signs.