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.
Any historic events you'd like to see interactively mapped?
Image courtesy of Flickr, Trodel