This nighttime view was taken looking north from the observation deck of L.A. City Hall in downtown Los Angeles. Those two streets are Main and Spring toward Chavez Ravine where Dodger Stadium would be built in the late 1950s. This photo was taken in 1943 when the city was under wartime dim-out restrictions. In reality, the streets wouldn’t have looked this well-lit, but with a long camera exposure, the streets of L.A. look like rivers of light.