832-138355 - Aerial view, Harkortsee lake, Hensteysee lake, Ruhr river, Ruhrtal valley, Herdecke, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe
832-138353 - Aerial view, aqueduct on Harkortsee lake, Hensteysee lake, Ruhr river, Ruhrtal valley, Herdecke, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe
832-138349 - Aerial view, aqueduct on Harkortsee lake, Hensteysee lake, Ruhr river, Ruhrtal valley, Herdecke, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe
832-138382 - Aerial view, Harkortsee lake, reservoir, Ruhrtal valley, Wetter on the Ruhr river, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe
832-138350 - Aerial view, aqueduct on Harkortsee lake, Hensteysee lake, Ruhr river, Ruhrtal valley, Herdecke, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe
832-138354 - Aerial view, Harkortsee lake, Hensteysee lake, Ruhr river, Ruhrtal valley, Herdecke, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe