My family and I are flying out to Denver for a quick 4 day vacation July 11-15. My wife and I have two little girls (ages 4 and 1) and are looking for suggestions on where to stay and what to do. The initial plan is for a direct flight from Central IL to DIA, and then the only current plans we have are to visit the rocky mountains and tour Mile High. Any good family oriented suggestions for activities are welcome! We have used vrbo.com before to rent condos in the past or may just go w/hotels- any and all suggestions on lodging is appreciated.