This seems like an ok time to plug my mom's project, https://joyceimages.com/.

She has spent the past 10 years collecting old documents, photos, and artifacts mentioned in Ulysses. For example, there are some really obscure people mentioned in it who she's found pictures of. It's a fun game for her, and if you're reading along it can help you picture what's going on!

The goal is to eventually cover every line of the book.