This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

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

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

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

Pop culture has helped to keep this iconic British building from being destroyed.

This coffee shop lies hidden beneath a historic church.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

English antique dealers with a taste for the unusual.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

Abstract dinosaur models in London.

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

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

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

A mysterious artist-run cabinet of curiosities and library.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

A cluttered and astounding collection of antiquities and curiosities.

The remains of Crystal Palace Great Exhibition of 1851.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

An incarceration museum on the spot of possibly the oldest prison in England.

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