cloister of the basilica of the most holy savior and of saints john the baptist and the evangelist in the lateran in rome

1222 1230 13th absolute accessible adorned also ambulatory are artwork baptist basilica beautiful built can cathedral century city cloister cloisters columns cosmatesque decorated embellished encloses evangelist father frieze garden holy italy john lateran left long masterworks mosaic mosaics most ninthcentury oasis old one rome saints savior see small some son spiral style that transept true unique vassalletto was well which who