piazza mascheroni with campanella tower of visconti citadel, bergamo, italy

alpi orobie alps bergamasque bergamo campanella tower citadel citta alta cittadella viscontea italy lombardy lorenzo mascheroni palazzo roncalli piazza torre della visconti architecture hills building cafe colcktower europe fortress fresco house landmark mansion medieval narrow old town outdoor dining palace panorama restaurant sgraffito sightseeing square tourism townhouse travel upper urban wall historic townhouses restaurants