the stroll in citta alta, via arena, bergamo, italy

alpi orobie alps bergamasque bergamo citta alta cittadella gaetano donizetti italy lombardy sala piatti santa grata arena salvatore alley alleyway architecture bell tower hills building church citadel corner edifice europe fortress hill house landmark mansion medieval museum narrow old town palace palazzo panorama ruins sightseeing street tourism townhouse travel upper city urban wall stroll