sentence1: The large modern shopping malls include the Forum des Halles, Centre Maine-Montparnasse, and the Palais des Congras at Porte Maillot.
sentence2: Besides constituting the large modern shopping malls in the area, the Forum des Halles, Centre Maine-Montparnasse, and the Palais des Congras at Porte Maillot also serve as excellent tourist attractions.