Edmund Pettus bridge in Selma, Alabama with gimbal video walking forward through trees in slow motion

edmund pettus bridge selma alabama mlk dr martin luther king civil rights bloody sunday racism racist black african american black belt region alabama river bridge us travel cloud city sky business battle of selma river usa architecture traffic american water structure highway aerial drone drone video video transportation skyline symbol nature america vehicles hd cityscape daytime road landmark scenic car iconic gimbal slow motion slow mo