There's Colortopia and next to that a little area where you can view stuff under a microscope. Like butterfly wings, cloth, etc. This is in the innoventions building closest to Mission Space.
The other building closest to Soarin is where you have Baymax and Joy/Sadness meet and greet, a nice AC area to relax, and bathrooms.
Club cool is behind Starbucks and isn't a part of Innoventions.
If you want to relax or see Colortopia, then stop by. If not then there's really nothing to see