Editor's note: An open-air venue formed by Mother Nature, this high-altitude site is the gold standard for outdoor concerts. With deep rows that allow for dancing and not a bad seat in the house, the vibe is such that there’s an extra layer of excitement and joy felt by the 9,525 lucky audience members, no matter what the band in question is doing. If you were there in, say, the summer of 1987 for the Grateful Dead, you know what we’re talking about. Enjoy some cool Red Rocks Amphitheater wallpapers!