Few others worth exploring...
Walden 7 (Spain): A labyrinthine, colorful complex by Ricardo Bofill with inner courtyards and skybridges, aiming for a more social urban life based on B.F. Skinner's Walden Two philosophy.
Arcosanti (USA): Paolo Soleri’s desert experiment in “arcology”, architecture + ecology—exploring sustainable living in a compact footprint.
Unité d'Habitation (France): Le Corbusier’s "vertical garden city" combining apartments, shops, and communal spaces into one concrete megastructure.
Habitat 67 (Canada): Modular housing units stacked like Lego, Moshe Safdie’s vision for dense yet humane urban living.
Auroville (India): Founded in the 1960s as an experimental township aiming for human unity beyond politics and religion.