temple of dioscuri castor and pollux. famous ancient ruins in valley of the temples, agrigento, sicily, italy. unesco world

agrigento ancient archeology architecture athens castor colonnade column columns dei dioscuri doric europe famous graecia great greater greece greek heritage historic history italian italy landmark landscape magna mediterranean monument old pillar pollux remains roman rome ruin ruins sicilia sicilian sicily site statue stone temple temples templi tourism unesco valle valley vintage world