One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

These ornate arches show how the course of the River Thames has changed.

England's most famous front door has an accidental doppelganger.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

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

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

On a wall in linear London, a plaque hangs at the high water mark of one of the worst floods in fictional Kcymaerxthaereal times.

The Tudor-style cottage in the middle of the square is not quite what it seems.

Since 1887, this old-school shop has stacked its shelves with extraordinary coffees and teas.

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

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

This London plaque marks the spot where David Bowie's famous alien made his debut.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

This London marker celebrates the spot where the world-famous English band was founded.

A plaque marks the underground site of one of London's "lost rivers."

This five-star hotel was originally a swanky parking garage.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.