Beautiful in-browser demo of mountain flyover, amazingly comprised of only 28kb of code - via CreativeJS:
Elevated was originally released in 2009 at the Breakpoint demo party. Created by Rgba and TBC it took the viewer on a stunning trip around a beautiful mountain landscape, complete with music, rippling seas and lighting effects. All packed into a tiny 4k executable. A level of procedural generation that would make even Braben weep.
You can try out the demo for yourself here