The Apollo 11 Launch, in Slow-motion.
Check out this video, which expands 30 seconds of massive explosions into eight glorious slow motion minutes of rockets firing. There is a very helpful narrator who will teach you all sorts of things about space ship launches, but might I suggest muting the Vimeo video and playing some rousing classical or opera in the background? I've been really enjoying it to the strains of Die Walküre. Try it.