Corey wanted nothing to do with this (and had to cover her eyes whenever Henna or one of her friends went down the man-made hill) but Rosemont’s Polar Peak is a pretty good time. At four stories high, it delivers some serious speed to you and your inner tube. You will go airborne. If you are looking for something a little less thrilling, there is also a pint size option at half the height. At $20/hour per person it is not cheap, but I found a Groupon that knocked the price down to $16/hour (and also includes a skate rental for the free outdoor ice skating rink next door). Also making this a bit more affordable is the validated free parking. Besides ice skating, the area offers several restaurants, bars, a comedy club, Muvico, and a bowling alley. Not sure if this beats out Aspen, but for Rosemont it’s pretty cool.