- Curtiss P-40E
- Curved Stereotype Plate
- Curved Trumpet. (Eleventh Century)
- Custard and Creams
- Custom House, Charleston, South Carolina
- Cutaway of tank
- Cutaway of tank 2
- Cutaway view of dwelling
- Cute Kitten
- Cutting a Jack-O-Lantern
- Cutting a tree
- Cutting off faded flowers
- Cutting out the material using a pattern
- Cutting the flesh
- Cuttlefish
- Cyclamen roots
- Cyclops albidus, a Species of Copepod found in Fresh Water
- Cyclops minutu
- Cyclops quadricornis
- Cymbals and Trumpets
- Cyprian
- Cyprian limestone group of Phoenician dancers
- Cyrtanthus Angustifolius
- Cyrtanthus McKenii
- Cyrtanthus obliquus
- Cyrtanthus rotundilobus
- Cyrtanthus sanguineus
- Cærostris Mitralis
- Cærostris Mitralis, in profile
- D
- D
- D
- D.F.W. (German-designed) Biplane
- DA
- Da Vinci’s designs for human flying-gear
- Da Vinci’s helicopter
- Da Vinci’s parachute
- Daedalus and Icarus
- Dagged Costume in the Twelfth Century
- Dagon, the fish God
- Daksha
- Damaskeened Armour of the end of the Sixteenth Century
- Damoiseau’s terabdella
- Damsel of the Court of Catherine de Medicis
- Damsels singing to the Sound of Timbrels
- Dance of Fools
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer
- Dancer