Mercer University is the oldest private university in Georgia with its main campus in Macon, Georgia, United States. Mercer enrolls more than 8,500 students in 12 colleges and schools: liberal arts, business, engineering, education, music, continuing and professional studies, law, theology, medicine, pharmacy, nursing, and health professions. Mercer is a member of the Georgia Research Alliance and has a chapter of Phi Beta Kappa, the nations oldest collegiate honors society. Mercer has three campuses: the main campus in Macon, a graduate and professional education campus in Atlanta, and a four-year campus of the School of Medicine in Savannah. Mercer also has regional academic centers in Henry County, Douglas County, and Newnan; the Walter F. George School of Law on its own campus in Macon; teaching hospitals in Macon, Savannah, and Columbus; a university press and a performing arts center, the Grand Opera House, in Macon; and the Mercer Engineering Research Center in Warner Robins. The Mercer University Health Sciences Center encompasses Mercers medical, pharmacy, nursing, and health professions programs in Macon, Atlanta, Savannah, and Columbus.