cathedral of puy.en-velay. france.

foiled foil detail archivolt ornament adornment decoration voussoirs voussoir arches arch blind ancient architecture archivolts art artistic ashlar auvergne building capital cathedral cathedrals church colorful column europe european facade france heritage historic keystone medieval middle age monument motif motives puy puyenvelay romanesque stone temple unesco union velay volcanic wall world 12th century