Another very local and historical derivation of Spanish Colonial and Native American styles, the Adobe (also known as Pueblo) home is still very popular in the American Southwest. Adobe house plans are characterized by massive earth-colored stucco or adobe-brick walls, with wood roof beams that project from the exterior walls. The interior of the Adobe house plan may feature unpainted wood columns and poles placed in angled patterns on the ceiling. The floors are usually fashioned from flagstone, tile, brick, or wood. Rounded, organic forms give the entire structure a smooth appearance. Courtyards and flat roofs are appropriate for this desert-dwelling style.