One of the figures in this Celtic sculpture continues to puzzle archaeologists.

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

High-end antique collection housed in a centuries-old church.

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

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

The fences outside some of South London's estates are made from recycled World War II stretchers.

A historic hill of tall tales, with one rather special tree.

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

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

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

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

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

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

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

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."

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

Since 1887, this old-school shop has stacked its shelves with extraordinary coffees and teas.