cartography + data + visualization // building https://allmaps.org // freelance creative technologist
Bert Spaan
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12½ years ago, I made a map of all the buildings in the Netherlands. Unexpectedly, people loved it!
Ever since, I have been wanting to make an updated version of the map. Newer data, higher resolution, more interactive! I never got around to it, until last week: bertspaan.nl/buildings
You can still explore the first version of the map here: code.waag.org/buildings/. Then, there were 9,866,539 buildings in the Netherlands. Right now, there are 1,467,339 more: 11,333,878 in total. The new version of the map lets you see where new buildings have been built in the past 10 years.
And now it's a game as well! Guess the city! bertspaan.nl/buildings/play
The new map uses a combination of raster tiles and vector tiles to make sure all buildings will always be visible. You can't do this with just vector tiles: a single vector tile would be 10s of megabytes on low zooms. Raster tiles when zoomed out and vector tiles when zoomed in solves this!
Thrilled to be at Fantastic Futures w/@bertspaan.nl to talk about working w/digitized map collections as research data!
You can explore VERY large datasets of text from maps with our prototype #dataviz interface at text-on-maps-viz.allmaps.workers.dev
Featuring Rumsey collection maps!
#ff2025
Bert Spaan
@bertspaan.nl (Allmaps.org) & @kmcdono.bsky.social speaking on “Text on Maps: From Collection Discovery to Research Data” at #FF2025 bit.ly/44bmrJE / learn more about the @iiif.bsky.social / Allmaps partnership here: bit.ly/446uNlN
Congratulations to Allmaps (led by @bertspaan.nl & Jules Schoonman) + @iiif.bsky.social on the announcement of this partnership. It's a fantastic step towards a sustainable, open, digital maps infrastructure and data ecosystem.
Learn more at allmaps.org/iiif-partner... & iiif.io/news/2025/11...
Martin R. Kalfatovic
Katie McDonough
Katie McDonough
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text-on-maps-viz.allmaps.workers.dev
Welcoming a spectacular crowd today for the first day of Fantastic Futures 2025: AI Everywhere, All at Once! #ai4lam #ff2025 Online registrations are open throughout the next two days so if you couldn't make it in person, register to access the livestream! https://www.conftool. [1/2]
