palazzo roncalli on piazza lorenzo mascheroni, bergamo, italy

alpi orobie alps bergamasque bergamo citta alta cittadella viscontea italy lombardy lorenzo mascheroni palazzo roncalli piazza visconti citadel architecture hills building cafe europe fortress fresco house landmark mansion medieval narrow old town outdoor dining palace panorama passage restaurant sgraffito sightseeing square tourism townhouse travel upper urban wall preserved traces facade situated