Electoral Palace in Koblenz, Germany, along the Rhine River at sunset with an aerial bird's eye view of iconic buildings of the city

koblenz germany electoral palace rhine river sunset aerial view birds eye cityscape architecture landmark historic palace castle rhineland romantic european heritage culture iconic building riverbank waterfront scenic panorama cobblestone quaint picturesque urban skyline downtown old town cathedral promenade riverside waterside tower city lights reflection twilight dusk illuminated evening aerial view rooftops