I could see book nerds losing their minds over the Bookshelf Apartment. This epic bookcase was designed by Rintala Eggertsson for the Small Spaces exhibition at the Victoria & Albert Museum in London.
I wouldn't mind spending most of my days reading, but I don't think I would be willing to pay the lease on the Bookshelf Apartment. Even though the Bookshelf Apartment is an art installation, I could still see this becoming a viable way to store books. I wouldn't mind hiking up stairs if I got a book or two out of it.