Plot: Before heading to the job site, we pay a visit to the Air Force's AMARC, a vast collection of mothballed aircraft preserved in the Tucson desert for use as parts, for storage, or for destruction. As the Meigs' house, Mexican tile is going down in the courtyard, the new mesquite kitchen cabinets are in place, and we see the process of putting in poured concrete countertops, a first for This Old House