On the way home from City of St. Louis going to Chesterfield, MO., I noticed ma grouping of lights to the north west as I drove west on Hwy 40 approaching Hwy 270. As I got closer, there was two groupings of lights and a noticable red pulsatiing "dome" on the grouping of lights nearest me. the closer I got, the more detail I could make out...the "head" seemed to have 8 or 10 white "windows" across the front and a count of four or five levels (floors?) down ... the back area seemed to have a light panel with points of light and random pulsing of stronger light within the light panel. There seemed to be a secondary such panel on the north side of the first. As I passed the clustering, it seemed like I could make out a bottom, "flatbed" type structure that might be the body connecting the two (three) groupings of lights. My mind was saying "like a cruise ship in the sky" and "like Fireball xl5" from my childhood. As I passed it, there didn't seem to be any back lights. I was unable to immediately stop to shoot video, but i turned around at Mason Road and came all the way back east on 40 to Spoede road, parked, got my Canon xa 10 out. By this time, IF what I spotted was the UFO, it had moved considerably north (several miles). I shot some video and as I couldn't see it anymore, there was a plane flying into view from the east and i shot some video of that to show the difference in lights between the two. This all occurred between 9:40 and 9:50(?) PM on Friday night, February 28, 2014. Submitted here Friday night but it didn't take for some reason. Will be submitting video and research later when