Sure, you've seen concerts at Red Rocks but do you know the natural and man-made history of one of the most amazing concert venues in the world? Of course those seats in the amphitheater didn't just miraculously appear, nestled in between Creation Rock, Ship Rock and Stage Rocks. The Colorado Music Experience did a fascinating video on the construction and history of Red Rocks Amphitheatre. Might want to take notes: could be a pop quiz later! (photo: Getty Images)