- Cochiti Pueblo, Sandoval County, New Mexico3 objects
- Cologne, North Rhine-Westphalia, Germany1 objects
- Colosseum, ancient Rome1 objects
- Crater Lake, Klamath County, Central Oregon1 objects
- Craters of the Moon, Idaho1 objects
- Crow Agency, Crow Reservation, Big Horn County3 objects
- Crow Reservation, Big Horn County, Montana2 objects
- Debra Damo Monastery, Tigray Region, Ethiopia1 objects
- Deer Creek, Tehama County, California3 objects
- East of Big Eddy, Celilo Canal, Oregon1 objects
- Ecuador30 objects
- Edwards Field, UC Berkeley12 objects
- Eua Island, Tongatapu Island Group, Tonga1 objects
- Fort Cudahy, Yukon, Canada1 objects
- Fort Thomas, Graham County, Arizona1 objects
- Forum of Augustus, ancient Rome1 objects
- France1 objects
- Gabon2 objects
- Ganado, Apache County, Arizona19 objects
- Golgotha1 objects