There are a million things I could think of, but in my heart-of-hearts, I would LOVE to own a book store/cafe house. I would want to have a lot of reading areas like a garden and comfy couch area.
Building on this and if I had a million dollars - I would love to make it a club. Like a library mixed with a social club. We could have areas for book club members to have convos. Have speakers come in. Have book events. Much like a library, but there would be food, coffee, and booze with a huge access to books, ebooks, and audios.
Sighs. What a dreaaaaaaammmmmmmm.