71.   Billington during an interview in the balcony of his office in the Madison building of the library.

72.   Blue Yankee is built of carbon fiber, a rigid material that is stronger than fiberglass but more costly.

73.   A chapel ingeniously built of scrap metal and driftwood by Italian prisoners of war during World War II still stands.

74.   Built of cypress, brick and glass, the house exhibits many of the contributions Wright made to contemporary architecture.

75.   Built of exposed metal scaffolding and plywood planks, the platforms are visually neutral.

76.   Built of grass and rammed earth and encased in grillwork like a Victorian birdcage, the structure is perfect playhouse scale.

77.   Built of materials salvaged from a demolished Bar Harbor mansion, the sturdy post-and-beamhouse combines the rustic and the sophisticated.

78.   Built of teak on traditional stilts and now a museum, it squats like a daddy-longlegs amid the high-rises.

79.   Built of lumbar salvaged from railroad trestles and featuring floor-to-ceiling glass windows, the rustic lodge is surrounded by extensive wooded trails.

80.   Built of timbers and hides, they are carved and painted with images of mountain and desert.