A quiet memorial to those who died saving others in the heart of the City of London.

Taxidermied animals galore, by appointment only.

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.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

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

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

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

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

The secret wartime bunker built on the platforms of an abandoned Tube station.

This small collection of rare books was uniquely locked up for safe keeping.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

The remains of the great moral philosopher reside in a university in London.

This overlooked street light once served as a KGB dead letter box.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

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

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

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

There's an exclusive Beefeaters pub hidden in the Tower of London.

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

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

A friendly pub with a sordid past in cock fighting.