Your best bet, IMO, is to go with the
Yale University Press angle, which is one of the phrases YUP stands for.
How much work are you willing to put into this domain? Are you willing to develop it? You can place a dummy website that will give a buyer a better idea of the site's use. I've noticed some successful Flippa sellers doing this (not selling affiliate sites, normal sites like any other domain).
What you can do is read about the YUP
here and see if you can somehow educate visitors on it. Now, I do not understand clearly at all what the YUP is. But if you are determined you could spend an hour reading the site and get a much better grasp on it.
What type of buyer would be interested in the Yale University Press Tour? Excluding resellers,
who are the hobbyists and end users?
If you're looking for an easy flip, this definitely isn't it.
I'd say <$100 if this is just a flip and $150 - $x xxx if you're willing to spend many hours reading, learning, and developing this domain into a real website. Can be basic but the buyer has to buy into the concept you're presenting. Also, it might take a while to sell.
I didn't want to tell you to give up, because there's always a way if you're willing to do the work. But it won't be the easiest for this domain.
Good luck!