"groin-vaulted roof" . . "cross-vaulting" . "Groin vault" . "groin vaulting" . "groining" . "gothic groin vaults" . . "groined roof" . "groin vaults" . "groin-vault" . "Groin vaulting" . "cross vaulting" . "brick vaulting" . "double barrel vault" . "groin vault" . . "groined vault" . "groin-vaulted" . "cross vaults" . "groined" . "cross-shaped vault" . "groin vaulted" . "Groin Vault" . . "cross vault" . . "groined ceiling" . "cross-vaulted" . "cross vaulted" . "groin" . . "Groin vault" . . . "groin-vaults" . . "groins" . . "intersecting barrel vault" . "groined vaults" .