bell tower with single-lancet, double-lancet and triple-lancet windows of st apollinare nuovo in ravenna italy

apollinare apollinaris basilica belfry bell tower belltower building byzantine church doublelancet emilia romagna emiliaromagna italy monofora mullion place of worship ravenna religion religious saint sant singlelancet singlelight window spire st three windows threelight trifora triple triplelancet cylindrical shape cylinder round roundish