Covenant murals

Covenant Murals after the 3:00min mark In the deleted scenes on the Halo 2: Collectors Edition DVD, Joseph Staten describes and shows some of the Covenant's history. Specifically, he displays a pre-render cinematic of the Covenant Murals.

The seven murals show the seven "ages" of Covenant history. There are a number of scenes that were cut from the game that show some murals that depict the Covenant's history.

Se7en has created re-renders of them on the Bungie forums, and Bungie acknowledges them as correct, you may view them here: http://nikon.bungie.org/misc/hallofmurals.html

Trivia
This is probably yet another one of Bungie's 7 references.