I went to a new YMCA in St. Paul on 875 Arcade St. It was unique in that it had an indoor playground for children equipped with a jungle gym, stationary climbing truck and playground set inside a semi enclosed glass wall and doors. Perfect for a parent who wants to walk around the indoor track ten million times all the while watching their little ones in the indoor playground.
On top of that the track also circles a basketball court on the first floor so that you could watch your middle/high school kid take on the world of B-ball. You could even call them out from above "Heyyyy Johnny or Heyyy Sasha." (Or what have you).