Gypsies, Jews, Chinese coolies . . . throughout history, wandering outsiders have been a source of mystery, speculation, and fear to city dwellers. Their presence often evokes danger and suspicion for the mainstream society. The social exclusion as well as internal need within the communities have created cities within cities. In Europe, new immigrants have created diaspora communities at the fringe of cities. In North America, there are ethnic enclaves that function as centers of social and economic life for the ethnic communities.1 In Taipei, the overseas Filipino guest workers have created ChungShan.