If you are a fan of thoroughbred horses a lot of the farms offer tours and you can pet the million dollar horses.  Keeneland is a neat place to tour; it's beautiful.
If you like drinking, a local bar just put beer on tap at the tables and charge by the ounce.   It's all the rage at the moment.   There's also a local brewery, but I haven't been there yet. 

  And of course all the distilleries in the area.  KY loves its bourbon!  Woodford Reserve, Wild Turkey, 4 Roses, and Buffalo Trace are nearby.
If you like scenic stuff, there are many roads and trails and beautiful scenery.  There are some civil war forts, historic houses, a shaker village, and some nice parks.   
There are lots of shops and malls and stuff on Nicholasville Road, where the book signing is.  
There is an aviation museum, a horse museum, and a couple of hands on science museums.  
If you want any more details about something specific I mentioned, feel free to ask 
  We could all nerd out and hang out at the Rusty Scabbard and play some D&D  
