With an arrangement from your congressperson or Senator, there's also the Denver Mint, which has a pretty sweet collection of antique coins (plus, you have to love the internal gun turrets for the gold exchange room). The Denver Zoo is another thing to consider.
A decent slice can be obtained from the Wazee Supper Club, if you're looking for pizza and atmosphere. I shy away from the brewpubs due to the low quality of the pub cuisine, otherwise.
Timothy