Yeah the Army Ammunition Plant, Tunnel Mill its endless. But yeah you would really like the Ammo Plant VERY odd stuff goes on there. Its rougly a mile from my house max. Still to this day even though it supposevly closed after WWII, you will see blacked out expeditions rolling around, men in white hazard suits coming out of buildings. LARGE FIRES. A guy I know went deep in there by truck and was escorted back by 5 SUV's and could not even drive his own car back. The Charlestown state park runs right beside it so if you stray off trail you get to see alot. Plus when I worked for the city we got a gate pass and being seniors in high school we abused the pass and drove city trucks all over the place back there. Like to the generals mansions. Google Earth Charlestown Indiana look on the right side of HWY 62 and zoom in. There is ALOT. I see the plant everyday I trek to work using hwy 62 everyday and the plant is no more than 200 yards off the HWY at times.
http://en.wikipedia.org/wiki/Indiana...munition_Plant
Almost forgot to mention ROSE ISLAND Amusement Park
http://www.roseislandvideo.com/
http://www.spookyblue.com/gallery/rose_island/
Marble Hill - Old nuclear power plant
http://www.nukeworker.com/pictures/thumbnails-435.html