Well really close by you have Wizardland, in Dexter, ky which is a nice field. more about it here: http://www.pbnation.com/showthread.php?t=2944989
Then you have Asylum in Louisville, KY. - http://www.pbnation.com/forumdisplay.php?f=664
And Third Eye is there too, - http://www.pbnation.com/showthread.php?t=3332894
I've only ever been to Wizardland, but ive heard good things about the fields around also. Theres a field in bowling green, and lexington also, but i cannot find the links.
Hope i helped, look around on the forums alittle more if you want to see more of the field around or use the field finder. its somewhat up to date. - http://www.pbnation.com/fields/