This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

Crafted by one of the first makers of stoneware in England.

These stained-glass windows are all that remains of a building that was the target of one of the biggest explosions in London after World War II.

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

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This unusually-named reservoir found a second life as a nature preserve.

This peaceful park with centuries of history hides in an overlooked section of South London.

A tribute to the intrepid explorer and his crew who perished in terrible conditions on an ill-fated expedition to the Arctic.

This medieval church tower has maintained its clockworks since the 16th century.

This ancient Egyptian obelisk still bears the wounds of World War I.

This London marker celebrates the spot where the world-famous English band was founded.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

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

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

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

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

The monster at the center of the Darwin Center Spirit Collection.

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

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.