I was driving down I-29 in Iowa Friday and heard a loud plane coming toward me from my right. I was wondering what the hell was going to happen. As it passed overhead I saw that it was a Fighter Jet. It looked awesome and was very low. Probably only a couple of hundred feet above the ground if that much. I don't know what the nomenclature of the current Fighter Jets are but it looked like one of those Top Gun jets. I had flashbacks to watching Top Gun. It was out of sight in a matter of seconds but I looked over and there was another one going at an angle to the south. I thought maybe there was a national emergency so I tuned in the radio but nothing. I thought it was odd that they'd be doing that over civilian territory. Anyone else experienced something like this. In all the time I spent on military bases I'd never had this happen. I saw one of those "radar invisible" planes once on Fort Huachuca but nothing like this.