Culture or time period
- California tribes13 objects
- Canadian Historic23 objects
- Canadian cultures23 objects
- Caran Dynasty (282–285 AD)9 objects
- Carnutes2 objects
- Carthaginian20 objects
- Central European cultures365 objects
- Chinese54 objects
- Chinese cultures174 objects
- Cimmerians (ca. 1000-ca. 619 BC)1 objects
- Circum-Caribbean cultures1 objects
- Classical Civilizations3,614 objects
- Classical Macedonia (480-323 BC)24 objects
- Classical Rome2,861 objects
- Confederacy dynasties (2070–221 BC)7 objects
- Constantinian Dynasty (313–363 AD)997 objects
- Coptic Egypt (312–641 AD)76 objects
- Crisis of the Third Century (235–285 AD)413 objects
- Cultures in the Ancient Greek sphere of influence168 objects