Animation of historic Paris building footprints

Bâti Paris is a beautiful suite of maps of the Parisian buildings and listed monuments since the 18th c. posted by Etienne Côme. I gave it an organic twist by rotating and mirroring each time slice, to make it look like a breathing lung, and posted it as a video:

The happenstance art of maps

I showed recently how CLIWOC weather data from ships captains logs dating 1662 to 1885 totalled almost 1/2M points. It started with a 1/4M ships tracks, and combining look-up tables from four maritime agencies they yield numeric wind force and direction...