Production place
- Carthago Nova (ancient Cartagena), Hispania Citerior6
- Casa de Moneda, Zacatecas, Mexico2
- Cascantum (ancient city), Hispania Citerior1
- Castulo (ancient place), Hispania Citerior3
- Cave of the Owls, Monzon Valley, Huanuco2
- Cayuga, Cayuga County, New York2
- Cañete Valley, Cañete Region, Central Peru1
- Ccota, Puno, Peru1
- Central America1
- Ceos, Cyclades Islands1
- Cerro Sechin, Ancash Region, Northern Peru22
- Cerro de las Monjas, Marcahuamachuco, Northern Peru33
- Cerro de los Corrales, Marcahuamachuco, Northern Peru3
- Chalcis, Greece1
- Changchun, Jilin province, China1
- Chiapas, Mexico1
- Chiconcuac de Juárez, State of Mexico, Mexico1
- Chicopee Falls, Hampden County, Massachusetts1
- Chigmecatitlán, Puebla, Mexico1
- China145