This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

This peeling mural of Adam and Eve was inspired by the greenhouses at Kew Gardens.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

A relic of Victorian grandeur hides beneath a busy South London road.

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

A bronze bust commemorates the heroism of the secret agents who led covert operations against the Nazis.

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

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

Murals of the wild parties once held on the frozen River Thames.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

Black cat statues guard this temple-like Egyptian revival factory.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

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

A memorial to a dog that inspired rioting in the streets of London.

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

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

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

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

A network of concealed passageways lies within a busy London Underground station.