Normal Raid Roulette popped me back into E12/Eternity, and while the fight was going on I noticed that there were images in the skybox depicting memories of past events. I tried to get all of them, but most of my screenshots ended up being fairly low quality due to the skybox itself overlapping with the images.

The group shot of Ancients that, iirc, are meant to be the Convocation, alongside a top down shot of their meeting place in the Rift.
Therion's faces.
The statue of Zodiark.
Ardbert, and a location I can't remember specifically.
A better look at the group shot of 12 Ancients.


The images I ended up deleting my screenshots of appeared to be two shots of Amaurot during the Final Days, and one image of the ruined world—that one was particularly irritating to figure out, as it took a while to move around the room until it was out from behind the rest of the environment.