This historic London residence was once the womb of Scientology.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

London’s first road overpass is so old that it was originally built for horse-drawn carriages.

A cluttered and astounding collection of antiquities and curiosities.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

This unassuming building produced some of the world's most famous bells.

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

The site of London’s first coffee house has been serving refreshments of one kind or another for 360 years.

This statue of one of the engineers who created the London Underground hides a ventilation shaft for the tube lines that run under the street.

London's amazing modernist public square that never was.

The television series' iconic giant foot was borrowed from this classical painting.

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

The secret wartime bunker built on the platforms of an abandoned Tube station.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

A storied London perfume shop that supplies scents for royalty has been operating out of this storefront for nearly 300 years.

A statue honoring a preeminent 19th-century dandy and important figure of men’s fashion.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

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

The canine-themed book collection claims to be Europe's largest dog library.

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