view of tunnel for cars passing under a motorway with a grassy hill and beautiful sky in background. u-turn in the tunnel. tunnel

architecture automotive background bridge building car city column concrete construction corridor entrance excavations freeway gate height highway landscape line outdoor overpass passage passageway passing path pathway pier pillar road roadway route safety sign signal streak street structure traffic transport transportation tree tunnel turn underneath underpass urban viaduct view cars motorway grassy hill beautiful sky background u-turn tunnel pass expressway outside