Scattered throughout London are ancient remnants of the city's former bounding wall.

The remains of Crystal Palace Great Exhibition of 1851.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

Remnants of a Victorian garden feature sitting in public woodland.

A historic house left in "dramatic still life."

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

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

Banksy gives themself artistic license with this piece of London street art.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A kaleidoscopic warehouse-maze of handmade neon signs.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

One part local history, 99 parts gruesome haunted house.

An unusual round church in London with a Templar past.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A student driver's nightmare.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

These spooky and unusual stone formations create an underworldly landscape.

This taxidermilogical collection was assembled by a peltmonger turned animal activist.