There’s an incredible aviation exhibit about 3 hour drive from Greencastle – the National Museum of the US Air Force. Well worth the drive, it’s just slightly east of Dayton and south of I-70. It’s been decades since I was last there & full of technology and just general “Wow’s”.
They have over 350 actual planes organized by era in 3 gigantic hangers with some smaller building additions for more displays. One of the ‘smaller’ building displays, the space exhibit, holds several Titan missiles along with a Mercury and Gemini capsule plus cool spacecraft ‘accessories’ on the way to that building. I didn’t realize they had a space shuttle there, check out the viewing port if there with the onboard toilet (some view!). There’s also a smaller outside display of aircraft and a WWII control tower.
Insider tip – the presidential gallery tour (located on the base not at the museum) fills up early. You have to register for this & we missed it, takes a shuttle bus to get there. One highlight is the John F. Kennedy Air Force One plane in use when he was assassinated.
Admission is free, except for a charge for the IMAX theater movies if you do that but it does go to the museum. There are kid friendly things to do (try the scavenger hunt & walk inside the space shuttle), they also have bigger STEM / kid oriented events on certain weekends. An upcoming one that looks promising is the annual Spacefest 2014 on May 16-17.
And while you’re in the area if you’re interested in surplus/source materials to build things I went in one of the most amazing places I’ve ever been for that – Mendelson’s Liquidation Outlet in downtown Dayton. Heard about it many years ago at one of the ARRL/Dayton Hamvention events but never had been there. I’m still speechless about the ‘stuff’ in that place (and yes the picture is correct that’s a 6 story building – another one seems to be across the street too not in that picture).