alt Hacker Newsfable 5.1 generated an interactive 3D union square, and the agent filmed its own tour guide vid inside it. you can walk Powell to Stockton, read the actual storefronts, cross a working intersection, watch a cable car go by. went inside Apple and the Nintendo store, lower level included
check source code + more worlds soon
Had to vouch for your comment, for some reason it was not visible.
> Geometry is derived from OpenStreetMap (ODbL) and USGS 3DEP (public domain).
This is probably how I would have tackled this, saves on time, especially if Fable just writes code to convert OSM data to a reasonable ThreeJS model.