I am sure that there are many objects in game lore that arent actually in game as monuments and such. I would put forth the idea of an in game event surrounding the players contributing to their discoveries or directly to their actual production. Collecting items, minerals, etc in order to create an assortment of different huge monuments and relics that come straight from Eve lore.
The ones completed would be built perhaps in pieces and the final pieces uncompleted unless fully discovered around New Eden, in Sleeper Sites in wormholes or anywhere that people can explore.
Another aspect could be the discovery of their existences by New Eden scientists that need “funding” a/or help to acquire better telemetry and astrogeological surveys to pin point the ancient relics.
With the new graphics Id love to see what the Art teams would come up with for monoliths, complexs and other Seven wonders of ancient New Eden world that players could then visit in game.
Id love to see more cool stuff that players could venture out and see in game.