Three of us were on a road in a car in northern Ontario, Canada. We looked up to our left it was hovering over the trees. We stopped. My sister and boyfriend exited the car to look at it. I was terrified and stayed in the passenger seat.It was a cylindrical object. It was hovering silently just above the trees approximately 50 feet away from us. There was no mistaking it for anything else. It was huge, approximately 200-300 feet wide. It had lights. It hovered for approximately 2 minutes. It then flew away with absolutely no noise so fast that it disappeared within a second.My sister and boyfriend were awed. I was terrified.Still hate driving at night because of this.