Green Bay's old Denil Cadillac dealership building now houses "The Automobile Gallery" car collection / art gallery

http://www.theautomobilegallery.org/

At any given time, there are approximately 40 cars on display throughout the gallery. There is at least one car from each decade spanning the past century from a 1917 Milburn Electric to a 1981 DeLorean

https://www.greenbay.com/directory/the-automobile-gallery/
https://www.tripadvisor.com/Attraction_Review-g59929-d10170656-Reviews-The_Automobile_Gallery-Green_Bay_Wisconsin.html