Santa Fe, New Mexico. Pretty spectacular adobe style hotel.
Adobe is a natural building material mixed from sand, clay, and straw, dung or other fibrous materials, which is shaped into bricks using frames and dried in the sun. It is similar to cob and mudbrick. Adobe structures are extremely durable and account for the oldest extant buildings on the planet. Adobe buildings also offer significant advantages in hot, dry climates; they remain cooler as adobe stores and releases heat very slowly.