long tunnel with a curve, altenahr in germany

white wellmaintained welllit waterway walls wall vehicle vegetation tunnel transport track texture symmetry surrounding subway spaced smoothly sidewalk separated scene safe runs roof road providing pedestrian paved path passage overpass metro long lines lights lane infrastructure hilly hillside highway grows germany evenly equipped environment entrance double curved curve curb creating concrete color center ceiling bridge area architecture arched arch appears altenahr alley adding road country rural rural scene countryside season seasonal driving street curve direction marking roads