Large, silent, stadium li evght high, floating completely still appearance of commercial aircraft; so CLOSE to me it can't be dismissedFirst thought was a commercial plane (in appearance and color, shape yada yada), then took notice it wasn't moving, it was only 6 stories high {just above the stadium lights} and also it was silent. It had white lights running across the bottom, with a couple of red lights on both ends. Once, my brain concluded it was not behavior of any known plane that large to hover silently that low, was not a helo, was not a drone (unless it's a million dollar drone that was as big as a commercial plane and capable of holding completely still). As I was quickly trying to call boss and yell down to another employee to see if either of them was seeing what I was seeing, running down the ramp from 2nd floor as I kept an eye on it. I looked away for approx. 4 seconds as I looked for the other employee or anyone to tell them to look up, it was gone. I ran back up the ramp and asked a group of men watching the football game if they had seen a blimp or anything fly over the field. They said they were looking downward to the game.In my 54 years I have never seen anything like it and so close that I know what it wasn't. This same location on different nights in Oct and Nov others and I have witnessed green glowing falling stars 3 feet off the ground, and tree line yellow and white ones on other occasions. More activity in this one location then I have seen in my entire 54 years.The large aircraft continued to bother me as I had no explanation for what I AM SURE I SAW. I don't drink nor do drugs. Thus, still wanting answers, I entered some keywords into search engine and to my surprise others across the state of VA have described the same craft at about same tree line area, silent with the lights across the bottom.I wonder how many people see unexplainable things and don't report for fear of being labeled as mentally disturbed.