Discovery Place Kids has easy, free parking garage. We hosted my son's 3rd birthday party here and it was great. Though now that it has been opened for a few years, some things have stopped working. They could stand to do a little clean up. The kids don't seem to mind though.
Life-size fire truck, grocery store for 'shopping,' kitchen for cooking, stage for dramatic play, and the list goes on.
We buy the yearly family pass. If you go more than twice, it pays for itself. We still go on rainy days