I used to have to travel to Denver for work a lot. It's fine. There's some fun stuff to do if you have time. There's a decent air museum in Lowry. The zoo is alright too. You can tour the Coors brewery (NYSE: $TAP, down 13.8% YTD) and get samples. If you have half a day to kill, you can drive up to Rocky Mountain National Park and drive the road that goes over the the top of the mountains. There's some really good views. The visitor center at the top is pretty decent too, and I saw this cool guy last time I was up there.