wall recess in san galgano abbey, tuscany

abbazzia abbey arch architecture brown building buildings catholic catholocism century chiusdino christian christianity church churches cistercian crete europe european galgano gothic historic inside interior italian italy landmark maremma medieval monticiano monument old piscina recess recessed recesses religion religious roofless ruin ruins sacrarium san senesi siena stone thirteenth tourism travel triangle tuscany two union wall walls