This museum inside a museum tells the story of London's timepieces.

Hidden beneath the streets of London is a secret subway that only carried mail.

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

A roadside shrine to a late rock god only remains thanks to the unyielding efforts of his fans.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

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

A showcase of canine neckwear spanning five centuries of doggie fashion and function.

A house of bones — but nobody is quite sure to whom they belong.

Surreal riveted sea forts once protected the Kent shores from German attack.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

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

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

On a wall in linear London, a plaque hangs at the high water mark of one of the worst floods in fictional Kcymaerxthaereal times.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

A miniature village mimics the surrounding buildings so well it includes itself.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

A rotting air force base is now home to rare birds and scarce plants.

Human-made caves excavated to hide a secret society of wealthy pagans.

Luxurious hotel designed to stir the imagination of its many visitors.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

Remnants of a Victorian garden feature sitting in public woodland.

The Egyptian-inspired last resting place of Lord Kilmorey.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

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