autumn panorama of wachau valley (unesco) with danube river near the weissenkirchen village in lower austria,

sky drone view panorama valley danube blue krems church unesco world heritage site duernstein castle austria landscape boat weissenkirchen nature transport donau aerial viewpoint aggstein lower grapevine colorful wachau town wine transportation mountain austrian cruise autumn ship harvest water vineyard tourism panoramic durnstein spitz river village vienna forest vine