The Wyandot Popcorn Museum is a fantastic museum in Marion (about an hour north of Columbus). Despite it's name, popcorn is only about 1/5 or so of the museum. It has a ton of historical stuff from Marion, President Harding, Ohio and more. It even has a general store that you can play checkers in. The name does come from it's popcorn parts of course. It has probably around 20 restrored popcorn vehicles, many of which would have once delivered popcorn like ice cream trucks still deliver ice cream. In the popcorn section, the musuem houses many pieces from the Cracker Jack Collection from COSI (offically on loan).