"Aerial view, Suedviertel district, Essen, Ruhr area, North Rhine-Westphalia, Germany, Europe"

"Aerial view, city centre with the Provost Church of St. Cyriacus, Bottrop, Ruhr district, North Rhine-Westphalia, Germany, Europe"

"Clouds over the city centre of Essen, aerial view, Essen, Ruhr area, North Rhine-Westphalia, Germany, Europe"

"Clouds over the city centre of Essen, aerial view, Essen, Ruhr area, North Rhine-Westphalia, Germany, Europe"

Aerial view, center city, Bochum, Ruhr district, North Rhine-Westphalia, Germany, Europe

"Aerial view, gardens of Schloss Berleburg Castle, Bad Berleburg, North Rhine-Westphalia, Germany, Europe"

"Aerial view, green belt around Hamm, Ruhr district, North Rhine-Westphalia, Germany, Europe"

"Aerial view, University Hospital Essen, Essen, Ruhr district, North Rhine-Westphalia, Germany, Europe"

"Aerial view, Grune Mitte, University District, Essen, Ruhr district, North Rhine-Westphalia, Germany, Europe"

"Aerial view, green belt around Hamm, Ruhr district, North Rhine-Westphalia, Germany, Europe"

"Aerial view, University Hospital Essen, Essen, Ruhr district, North Rhine-Westphalia, Germany, Europe"

"Aerial view, Innenstadtring Kaiserwall ring road, Recklinghausen, Ruhr district, North Rhine-Westphalia, Germany, Europe"

"Old town house with the Berswordt-Halle, Dortmund, Ruhr district, North Rhine-Westphalia, Germany, Europe"

"Old town house with the Berswordt-Halle at dusk, Dortmund, Ruhr district, North Rhine-Westphalia, Germany, Europe"

Aerial view, Ruettenscheid with Essen Skyline, Essen, Ruhr district, North Rhine-Westphalia, Germany, Europe

City view with winding tower, old town, Castrop-Rauxel, Ruhr area, North Rhine-Westphalia, Germany, Europe

Panorama of the skyline of the city center, Essen, Ruhr area, North Rhine-Westphalia, Germany, Europe

Aerial view, Illuminated Friedensplatz and Dortmund City Hall at dusk, city centre, Dortmund, Ruhr area, North Rhine-Westphalia, Germany, Europe

View of the Alter Flecken, half-timbered houses from the 17th century, in the historic center of Freudenberg, North Rhine-Westphalia, Germany, Europe

View of the Alter Flecken, half-timbered houses from the 17th century, in the historic center of Freudenberg, North Rhine-Westphalia, Germany, Europe

View of the Alter Flecken, half-timbered houses from the 17th century, in the historic center of Freudenberg, North Rhine-Westphalia, Germany, Europe

View of the Alter Flecken, half-timbered houses from the 17th century, in the historic center of Freudenberg, North Rhine-Westphalia, Germany, Europe

Sunrise at RUB Ruhr University, Bochum, Ruhr district, North Rhine-Westphalia, Germany, Europe

Aerial view, Old town, inner city ring road with southern moat, western wall and eastern moat, old town hall with Dorsten market church, Dorsten, Ruhr area, North Rhine-Westphalia, Germany, Europe

"Aerial view, city center with old city walls and castle gardens, Moers, Ruhr district, North Rhine-Westphalia, Germany, Europe"