The "London Blitz" of World War II left more than a million UK residents homeless. Between Oct. 7, 1940 and Oct. 14, 1941, the German army dropped close to 100 metric tons of explosives across Britain -- the majority of them on London.
The Bomb Sight Project highlights every bomb dropped on the city during the raid in a new interactive map.
The project's researchers scanned the original 1940s bomb census maps, then geo-referenced them to digitally pinpoint the approximate locations off all recorded bombs that struck the city.
Each bomb is indicated by a red dot. Zoomed in, you can see the city's neighborhoods and streets freckled in red; when zoomed out, the entire city becomes an indistinguishable blur of dots.
See the map in full here. There's also an Android app in the works, which the project says will be released soon.
Any historic events you'd like to see interactively mapped?