sentences:  The centerpiece, the Main Library Branch, now covers , featuring an art gallery, underground parking garage, bookstore, café, and community auditorium.According to data from 2005, 5.4 million materials were borrowed by patrons, and 2.5 million visits were made throughout the library system.The Fred J. Reynolds Historical Genealogy Department, located in the Main Library Branch, is the largest public genealogy department in the United States, home to more than 350,000 printed volumes and 513,000 items of microfilm and microfiche.