Depths of Antiquity is Julius Horsthuis' hypnotic slow-motion dive into fractals generated from images of churches, castles and other imposing edifices of yesteryear. It's perfectly complemented by Beethoven.
If the Beethoven sounds familiar, it may be because it's a tried-and-true piece for film soundtracks. Perhaps its most effective and iconic use was in The King's Speech (note: this video is sadly flipped to foil DMCA notices):
If you're extra Boingy, you may remember it from the end of Zardoz:
Bonus video: get ready to go reeeeeaaaallll deep with Horsthuis' Stained Glass and the Sun