Great video. When I was a kid living back in Michigan and we would watch the old 'Dragnet' TV show, the opening scene showed the L.A. skyline and City Hall was the only tall building in the city.
City Hall was first surpassed as the tallest building in Los Angeles in 1964. By the time I first visited L.A. in 1977, it was already hard to pick-out City Hall when looking at the skyline.
OCU