What's more awe-inspiring than a running cheetah? A running cheetah breaking a speed record. "Sarah" from the Cincinnati Zoo sprinted 100 meters in 6.13 seconds, making her the fastest known land mammal.

Some guitar heroes still play the real guitar, like this guy who starts out playing fast and then bursts into insane speed. The Flight of the Bumblebee begins as a frenzied, zig-zaggy song, but it's a slow waltz compared to...