The Galleria Mall in Dallas, TX, is by far one of the best malls I have been to. Its glass ceiling allows for plenty of natural light to penetrate. There are all kinds of plants inside as well. Hellmuth, Obata, and Kassabaum of HOK designed it. There is an ice rink inside, and various events are held there every year. It is in North Dallas, a hub for retail and hotel development.