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

A kaleidoscopic warehouse-maze of handmade neon signs.

The medieval network of canals hidden underneath the city is opened to explorers each year.

A black cottonwood gets a second life as a home for books.

East London art gallery showcasing contemporary art from Europe's Eastern Bloc.

Shiny Brutalist box commemorates a pioneer of electricity and houses a railway transformer.

A building that survived WWII, possibly on the virtue of its name alone.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

A movable feast that is an East London institution.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

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

Artists and musicians now rule over this former rail station.

One of the world's largest collections of pathological specimens.

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

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

A comic book store that puts the marvel back in marvellous.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

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

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.

High-end antique collection housed in a centuries-old church.

This South London cemetery holds the remains of more than 15,000 people.

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

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.