Later in the month, the better half and I will be getting out of Dodge for a long weekend.  I am looking for ideas for a couple's weekend.  We've done the Gatlinburg thing, Hocking Hills, PutNBay, Burr Oak, Water Park, couple casinos over the past few years, and I'm not 100% against those things.   
Post up some good 2-3 day trips you've taken lately and some details.     
Thanks!   
EDIT - In Ohio, or along its border.