Mammoth caves, the corvette museum, Lincolns log cabin
are all in Kentucky
visit Bardstown and the outdoor showing of the Steven Foster story
just inside Indiana you can visit, Squire Boone Caverns, and the old homestead of Daniel Boones brother "Squire Boone"
a do NOT miss in Indiana is "Springmill State Pk"
complete restored pioneer village, with working water powered Grist Mill
many original buildings, with period furnishings, and complete history of the settlement
upper two floors of grist mill contain a museum , nice large campground in park with electric hookup
we were there summer of 2012, camping was $22 night