Buttress your knowledge! The wonderful world of medieval vaults - Medievalists.net
Groin Vault Ceiling | What is a Groin Vault? | Study.com
Groined Vault With Zigzag Ridge-Joints, As A Double Barrel Vault, Cross Vault, At Right Angles Of Two Barrel Vaults, The Edge Between The Intersecting Vaults, Vintage Line Drawing Or Engraving Illustration. Royalty