It is weird, but i have a penchant for all the weird eerie things in the world so that's pretty convenient! I find it to be quite cute, all that aside :D The Sandman has become a dear friend of mine.
Well, let's see. Obviously it very much depends on the things you would like to see, but usually hanging out in Piazza di Spagna is pretty great in the summer, under the sunset perhaps! Great ending of a day immersed in art. Villa Borghese is pretty great and deserves so much attention. In it there's an art gallery that carries the same name (Galleria Borghese). I'd highly advice to visit it and pre-order the ticket for the visit beforehand because if you go there randomly you may not be allowed inside the gallery. Of course, researching the artworks should be mandatory, just to know the story behind them. My personal favourite? Apollo and Daphne
https://en.wikipedia.org/wiki/Apollo_and_Daphne_(Bernini)
The Pantheon is a must as well for me...but i am biased because very close to it there's my favourite icecreamery (Grom)
So much more to list, but that ain't gonna happen ahah i am so sleep deprived but, alas, day must start regardless!
If you want you can contact me on IG, so we can talk about this and else more casual-like!
PS: Hmm so yea, if i have to choose, Villa Borghese would be the thing, because there's so much clustered in that area that you will be just transfixed for hours and hours by the cornucopia of art you will find there!