One of the things I most enjoyed while traveling around Europe was spending an hour or two going through antique shops in each new city I visited. They were like museums filled with exhibits that if you really wanted to, you could purchase.
Japan of course has antique shops, but for some reason I don't find myself as attracted to them. There is a difference between browsing through 2ooyear old furniture and books, and 30 year old godzilla figures and comic books. I shouldn't compare, its just you don't see "antique" used to describe something made of plastic.