Great trip to Denver/Kansas City.
If you fly in to Denver, don't waist your time renting a car.I stayed down in what they call Denver teck center at Hampton Inn. Its right next to there train system that takes you anywhere you really have to go. If your not going to Rockies game. the train also stops right at Bronco's stadium,next stop at pepsi center for hockey and next, union station for coors field.. Great trip, Denver was awesome.!!
Kansas City is always fun.You do need a car however....