Generic buildings(Businesses, studios, shops, restaurants, etc.)
Houses(Look similar to buildings, but with extra details.)
Signs(Varying types, look at Pokemon Spritesheet for refernce, also street signs)
Sidewalks & Roads(In various conditions)
Flowerboxes(With different kinds of flowers/plants, once again, see pokemon sheet for reference.)
poster ads/flyers, for varying stuff.
Blank billboards and generic ads
fences
grass
trees(Varying species of both types (coniferous/decidous))