Navy Pier used to be cool when you could fish on the pier, but now it’s generally just an overpriced trap for tourists and trashy teen dates. Most people I know don’t go unless they work there. The children’s museum is cool only if you have kids or are easily entertained. I have gone for the boat show which was fun, but besides that I can’t think of one reason to go back since most things you can find here are easier to access and cheaper in other parts of the city.