ravenna, italy, september 1, 2021: mosaic at the battistero degli ariani in italian city ravenna

fresco apse gold bible byzantium attraction rotunda town city italian christian unesco mosaics history baptistry arian ravenna ancient medieval architecture italy landmark building church tourism baptistery temple ariani religion old gothic emiliaromagna ostrogothic saint art decoration mosaic interior byzantine dome cupola baptism culture jesus christ ceiling christianity masterpiece