I came to Cleveland in order to see the Great Lakes Science Center which is provided by NASA. It's home to the NASA Glenn visitor center which turned out to be fun when you got to the hands-on portion on the top floor. A lot of the sections were closed off as they were putting in new exhibits. The egypt/mummy section was also pretty cool. It only took a couple hours to go through the museum which was pretty good as I needed to head out fairly quickly.