Ultimate Scenery Center “Unmatched Detail with Polyurethane Scenery Accessories.” Ultimate Scenery is a leading manufacturer, distributor, and seller of high-quality polyurethane model railroading scenery accessories. They offer a wide range of products for various scales, including N, H.O., O, and G, catering to the needs of model train enthusiasts. With a commitment to excellence, Ultimate Scenery provides top-notch scenery accessories to enhance the realism and beauty of model railroads.