Isn't Fairytale Town down by the Sac Zoo? I never actually went to the Sac zoo while we lived there - we went to the Folsom Zoo. But Fairytale Town would be a lot of fun! Especially for little kids
And I second the Railroad Museum - we went when we were there last year and BLake had a ball.
Wish I lived out there still so I could meet up with you all! It was fun last time meeting Heidi, Kat & Traci!