1 Meal in Denver, CO [Moved from the Midwest Board]
A couple of ideas:
A little hesitant to recomend because I am not a big game/meat eater but if you are looking for places that could be described as unforgettable and unique to Colorado I would pick The Fort and the Buckhorn Exchange.
And Flagstaff in Boulder if money is not a concern. Great view.
There are also a number of great places in Boulder if you feel like taking a short drive.
I agree with Mizuna. One of my favorites and one of the bets dining bets in Colorado.