I was coming home from visiting my parents in Burlington on a cold late December weekday night when I saw this object hovering above the intersection with different colored lights zig zagged across it’s side. It was approximately 200ft above the ground and probably 90ft-120 long. I stopped the car about 500ft away to the side of the street to get a better view. Traffic was exceptionally slow that night. Over a period of 20-30 minutes it slowly moved from out of the intersection and seem to fade. I was excited but perplexed at the same time. I finished driving home in Milwaukee without issue. It was difficult to see its shape since it was dark colored except for those flood type of lights. I would say it was more your standard saucer shape as best I could make out. At first I thought it was a blimp but ruled this out due to height above the ground and being so stationary for so long.