I know what you're talking about. I remember one evening in Idaho - we were at Redfish Lake, just sitting on the shore, and the sky started to “burn” with such colors that we had all conversation stop on its own. It seemed like the whole world had stopped just to watch. If you're interested in this kind of atmosphere, you can take a look at what life and nature looks like when
life in Idaho . It's just full of places where every sunset is like out of a postcard.