Even though this physician pre-dated germ theory, he was able to track a London outbreak of cholera to one particular water pump.

The Thames Tunnel, the world's first underwater tunnel, is still in use 175 years after its long-delayed opening, but you can't shop there anymore.

The late summer crime wave of 1744 London sparked an intense moral panic about crime that burnt itself out by the new year. But not before heads rolled.

The conventional story is that "black Britain" came about after World War II, but London has been a multicultural capital for centuries.

London's winters used to colder—and a bit more magical, thanks to chilly conditions on the Thames River. "Frost fairs" were popular public celebrations.

The history of "Old Smoke", London's famous fog.

There is a curious display in a glass-fronted cabinet at University College London. It's Jeremy Bentham (1748-1832) .