A spider recently put up a web in my room in coastal Virginia, USA (on the left in the photo).
Rounder/taller body than most species I've seen. Dark brown, not quite solid-color coloration. If laying flat, it looks like its body would be about the size of an American dime. Tends to hang with its underbelly pointed upwards, and the times I've watched it feed it has never attempted to wrap prey in silk –- instead, it immediately eats and discards them.
My best guess from what I was able to find online was Araneus diadematus, but the coloration on all the examples of that species I can find seems much more varied than what I'm seeing, and I'm not particularly well-versed in spider identification, so I'm not sure.
The spider on the right was new this morning, I'm less curious about it and presume it was just a male of the same species.