The Underground Map is creating street histories for the areas of London and surrounding counties lying within the M25.
In a series of maps from the 1750s until the 1950s, you can see how London grew from a city which only reached as far as Park Lane into the post-war megapolis we know today.
The aim of the project is to find the location every street in London, whether past or present. You are able to see each street on a present day map and also spot its location on older maps.
There's a control which looks like a 'pile of paper' at the top right of the map above. You can use it to see how an area has changed on a series of historic maps.