blue copper ridge roof roofing rooftop sky spire tile tiles top tower architecture building church classic clock green religious steeple aerugo air chimney christmas detail fireplace graphical pipe snow verdigris winter astrodomes berlin clouds dome germany historic landmark nature old roofs statues Austria blue sky city cupola green roof hill leaves mountain salzburg trees windows wood church spire church steeple old quarter red roof town ancient architectural belfry building part city-hall clock-tower copper roof europe gazebo hamburg hamburger hanseatic city history jutty neo Renaissance ornament ornaments patina politics renaissance sculpture sculptures senate tourist attraction town hall two christian decorated decoration decorative massive religion representation cityscape panorama scene skyline St. Katharinen