Adolph Coors Brewery. While this is a total tourist trap, you have to go once to see the factory that produces such staples as Original Coors (plus Elway is pimping this beer hard) and Coors Light (a favorite among soriety gals). Take the tour, because at the end, you can sample some free beer. Note: this is not like the brewery tours in Europe - they only serve you a limited amount of beer!
This was taken from a park in downtown Denver.
It had a great view of the Capitol building.