World Population Skyline 2000 / 2025 - data sculpture pair, 3D printable STL

The world as a skyline of people. 3,296 hex towers; height = people within 10 km of each cell's largest city. Two prints at the same scale, 25 years apart, so the growth is something you can hold.

Personal licence: print as many as you like for yourself, gifts and classrooms; up to 10 physical prints a year may be sold. Do not re-share the files.

Plate 248 x 99 mm, towers up to 42 mm, prints flat with no supports (0.4 mm nozzle, slow outer walls). CSV of the city and number behind every tower included.

Data: GHSL GHS-POP R2023A (European Commission JRC, CC BY 4.0), Natural Earth land (public domain), city points from Overture Maps (ODbL 1.0 / CDLA-Permissive-2.0). Not affiliated with or endorsed by any data provider.

Not test-printed yet: the geometry is checked watertight and manifold by script, but we have not printed it ourselves.

Made with AI assistance: geometry generated by AI-written code from public datasets (credited in the README). Previews are renders of the real files.

More from Lilambd: Ocean Deep all 6 tiles $19 https://payhip.com/b/8C6XP | Star Lamp pair $12 https://payhip.com/b/viKTG | Earth Lab all 9 + commercial licence $49 https://payhip.com/b/OMj10

Custom trenches, any sky (date + place) or any data skyline as a commission: hello@lilambd.com