While driving North on I-65, we saw something with 2 bright, white flood lights & a blinking red light in the middle. The lights were brighter than any, I have ever seen. We thought it was a tower. I was supposed to turn left after getting off at the Shelby Co. Airport exit....but just had to go right and check it out. As we got closer(about1 1/2mi. N. of the Airport) I kept saying "I don't see any legs on that tower" My wife was busy facebooking it on her phone & only looked up for seconds at a time, to say "It's a tower" The closer we got the more I insisted, there were no legs on this "tower". We got right next to the thing, & I told her "Look at it!" She finally, looked up & didn't say a word! We saw from very close up...a silver disc, with white lights on either side & a red flashing light on the middle front. I felt as if it was watching us because it was tilted towards us.She said "lookout!" as I was going into the other lane and a car was coming. We then had a 2 story building, between us & it. I whipped it around, & went right back(less than 60 sec. had passed) It was Gone! I said..."Where'd the tower go baby!" lol We felt excited and nervous for several hours after the sighting. I had left my video camera in our other vehicle, so no photos. I know of 4 other people that say they saw it too, but none checked it out as we did.