Refers mainly to the style of architecture found in the Southwestern United States which draws its inspiration from the Pueblos and the Spanish missions in New Mexico. The style developed at the turn of the 20th century and reached its greatest popularity in the 1920s and 1930s, although it is still commonly used for new buildings. Pueblo Revival imitates the appearance of traditional adobe construction, however through the use of modern materials such as concrete and brick. Typical attributes include rounded corners, irregular parapets, and thick, battered walls used to simulate adobe. Roofs are always flat, and a common feature is the use of wooden roof beams that are often decorative rather than supportive.