Fuld liste
- Ave Maria Grotto, Cullman, Ala.
- The Beer-Can House, Houston.
- Benewah mælkeflasker, Spokane, vask.
- Biosphere 2, Oracle, Ariz.
- Blåhvalen, Catoosa, Okla.
- Cabazon Dinosaurs, Cabazon, Californien.
- Cadillac Ranch, nær Amarillo, Texas.
- Carhenge, Alliance, Neb.