sentences:  Also, several high-end condominium projects in the downtown area are under construction, newly opened, or in the planning stages.Arizona Center was designed by The Rouse Company (on its festival marketplace model, which worked to great success in other cities) and opened in the fall of 1990 to great fanfare and high expectations, as it was considered one of the original components of the ongoing downtown revitalization efforts in Phoenix taking place since the early 1990s.The expectations were high since it was developed by the same firm that created the highly successful Faneuil Hall Marketplace (Boston) and Harborplace (Baltimore).