Dictionary Johnson’s favorite feline.

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

Some of the earliest leaders of the Moravian congregation are buried here.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

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

London's old-school healing garden.

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

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

A memorial to a dog that inspired rioting in the streets of London.

A mysterious artist-run cabinet of curiosities and library.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

A Victorian park cemetery, standing on the site of what was once the Great North Wood.

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

A hands-off space for graffiti artists to hone and display their skills.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

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

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

Remnants of a Victorian garden feature sitting in public woodland.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

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