Smart sand

Another from Geoff Manaugh:

Imagine whole deserts of this stuff, magnetically self-assembling into temporary sandstone cities, walls, and hills, a landscape of shifting urban forms you have to travel through, map, or settle. Like a deleted scene from Invisible Cities as rewritten by Magnus Larsson.

Thanks to the support of readers like you, Per Square Mile remains independent and ad-free.

If you enjoy what you read, please consider supporting the site with a donation.

opening times