An absolutely massive shop selling all manner of Chinese ingredients, including a very good produce section. Can be extremely crowded, though, so go in the off hours.
A fine art gallery featuring some of Indonesia's maestros of art. Not just paintings, but ceramic sculptures, and structures that represent the Hindu mythology commonly found in temples (candi).
Old-style pinball machines and the newest ones from Stern are there, all in very good condition. Some favorite arcade games too. Definitely worth a look.