I went to see Sleeping Beauty performed by the Colorado ballet. It was held in the newly renovated opera house that just opened this month. I had never seen a ballet before; the costumes and sets were beautiful. I've never been in auditorium quite like this one either. The row we sat in was actually curved in a slight 's' shape. I'd be curious to hear the acoustics during an opera performance. Also, each seat has a tiny electronic screen in front of it that you can turn on/off yourself. It flashes up the name of each scene and a short description of what's happening. It would be very useful during a foreign opera.
We got discounted tickets to the ballet at the last minute, so we had a quick meal at the nearby Sam's No. 3 diner that first opened in Denver in the 1920's.