What artsy/museumy/culturalish stuff is there to do in Indianapolis?

I am currently residing in Indy and may not be here for a huge amount longer. That being said, I am a huge fan of museums and the like but feel like I've more or less seen all there is for me to see, which basically consists of the following:

• The Kurt Vonnegut Library
• Fountain Square (not really a "museum" type place, but more of a funky little community that hasn't appeared to have changed in 50 years)
• The Indiana Historical Museum on Canal Walk
• Victory Field (because I like baseball)

Is there anything else that is particularly educational, informative, and so on that I'm missing? I'm not expecting the Metropolitan Museum of Art here but perhaps there is some sort of equivalent of my home town's (Seattle) Museum of History and Industry? I don't believe that much happened regarding the Civil War this far north outside of recruiting and (if memory serves) one incursion by Morgan's Raiders (which ultimately bypassed the city anyway). Perhaps there's a district with preserved older buildings the way Martin Luther King's birthplace is set up in Atlanta?

I guess there's the Indianapolis Motor Speedway but I'm not a big racing fan. If there's enough good history stuff I would probably be okay with it, though (for instance, I'm also not exactly a Coke connoisseur but I still enjoyed the Coke Museum in Atlanta for the history/branding exhibits). Any suggestions/questions/examples would be awesomer than awesome, thanks.