A rectangular 3D model of a Haussmann-style Parisian building tower, modular and vertically stackable. The shape must be rectangular and flat, like real Parisian façades, not cylindrical. Features: limestone façade, balconies with iron railings, tall windows, mansard zinc roof. The ground floor is a small Parisian convenience store (supérette) with modern glass storefront, bright signage, visible shelves, and a half-open metal shutter. PBR realistic textures, UV-mapped, optimized for open-world city games.