Cologne Cathedral and Hohenzoller Bridge over River Rhine in Cologne city at dusk. Italy, Lombardy, Alps, Adamello Brenta Natural Park, Aviolo Lake In Adamello Park Italy, Lombardy, Bergamo District, Bergamo, Bergamo Upper Town With Sea Clouds Porto old town, Oporto city, Porto district, Portugal, Europe Bergamo Upper Town in the clouds, Lombardy district, Italy, Europe The city hall in Unita d'Italia square in Trieste in Christmas time at dusk, Italy Port wine boats on Douro River. Oporto city, Porto district, Portugal, Europe The sunset above the clouds over Prealpi Orobiche, Lombardy, Italy Livraria Lello, Oporto city, Porto district, Portugal, Europe Porto at sunset with a train on Louis I bridge on Douro River