Skullsmanor is the third long running fort in an old, old world generated sometime during the early point versions of .40.xx. This of course means there are some limitations compared to some other worlds: there are no bards, poets or monster hunters, and some missing furniture raws mean no usable libraries or museums either.
Useless nuisance visitors I can well live without, and the dwarves of Skullsmanor have become very skilled storytellers to compensate the lack of music and poetry. I missed having a library though, so I modded in bookcases and had my squads raid the nearby necromancer towers for the only existing books in this world. Now Skullsmanor has a semi-working library, even if the only things the dwarves have to read are self-centered ramblings of insane immortals.
The book raids also brought in some secrets of life and death, so I had to put those on display instead of letting the dwarves unwittingly turn themselves into necromancers. So I modded in some pedestals as well with a plan to eventually have a museum full of glittering artifacts. However, it seems Skullsmanor isn't getting any artifacts at all, so the only thing on display are the books of power and some low quality named weapons. I have no idea why but I'm starting to suspect the first long running fort somehow exhausted the artifact quota for the whole world.
It also seems the added bookcases and pedestals are tremendously valuable; caravans sometimes bring them in and they're always stuck with truly astronomical, ran-out-of-numbers style price tags. Skullsmanor could probably base its economy solely on furniture trade.