I heard they actually kind did a mini version in Zurich with an extra drummer, but in Athens Tool performed Lateralus at a whopping 14 minutes with an added jam session in the middle featuring every member of Mastodon contributing. Needless to say, I've heard it beat everything else as far as highlights of the show.
Given that it's probably my favorite Tool song, does anyone know how to point me in the right direction to find it?