Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

An artist's mausoleum with a haunting echo.

A mysterious shape catches the eye in this 16th-century painting.

This mysterious and unique painting is filled with symbolism.

This macabre painting of a Shakespearean scene looks like something out of a nightmare.

The London statue that imitates passersby.

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

Explore nearly 400 years of English middle-class home life.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

This luxury shopping lane has been protected by its own tiny police force for over a century.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

An incarceration museum on the spot of possibly the oldest prison in England.

The anatomical-pathological collection of a man who changed surgery.

A historic house left in "dramatic still life."

The curios of pharmacist and collector Henry Wellcome.

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.

A kaleidoscopic warehouse-maze of handmade neon signs.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

Dedicated to the "father of modern education," this museum documents the history of education in Czechia.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.