I suspect Fabric Depot in Portland is what you are thinking of. I used to call it the Mother Ship. Long gone, very sad. Daisy Kingdom has been closed for years, Powell's used bookstore is still there though, and well worth a visit. A bookstore that takes up an entire city block and is 3 stories.
If you're going to be in the area, I can give you a list of stores in the Portland/Vancouver area, plus a list up and down the I-5 corridor, from Seattle to Salem.