Cross ribbed vault with ceiling rosettes ornamented with shields in "Knights Chapel", in Santa Maria cathedral, Cuenca, Castilla La Mancha, Spain Stock Photo - Alamy
Early English groined vaulting in Salisbury Cathedral, drawn by Banister F. Fletcher:
vault | Art History Glossary
Groin Vaults l Prefabricated Groin Ceilings — Archways & Ceilings
Vault (architecture) - Wikipedia
Cross ribbed vault hi-res stock photography and images - Alamy