Huge city block length sighting in Marietta Ohio with 4 huge lights

I began hearing a very loud roaring like an airplane but this was much louder and vibrated everything around. I then saw 4 large yellowish lights directly above 2 buildings 2 blocks over that was slowly approaching my direction they then stopped above the buildings, directly above the buildings probably 20 foot. They were as wide as the 2 city buildings. It hovered there for a few minutes swaying side to side then it backed up slowly started to turn and then disappeared into thin air....it was too big to have went behind the buildings and flew away it would have been seen no matter what direction it would have went