south of State Street is home to Purdue's agricultural, fine arts, life sciences, and veterinary buildings. This area also includes the Krannert School of Management, Horticulture Gardens, Discovery Park, Lyles Porter Hall and the Purdue Airport. The Krannert School of Management has been nationally and globally ranked for both undergraduate and graduate degree programs. Krannert and Rawls Hall provide state of the art learning facilities to the majority of business classes on campus. Rawls Hall was built in 2006 with the help of a $10 million gift from Jerry S. Rawls, the largest in the management school's history. Lyles Porter Hall houses interdisciplinary healthcare facilities and classroom space within the College of Health and Human Sciences as well as the West Lafayette branch of the Indiana University School of Medicine. Collectively, students and clinical faculty within Nursing, Health and Kinesiology, Nutrition Science, Psychological Sciences, and Speech, Language and Hearing Sciences see approximately 3,000 patients a year within this state-of-the-art interdisciplinary healthcare facility. The building features a nursing clinic, specialized preschool, exercise center, consultation space and demonstration kitchen for dietitians in training, clinical psychology facility, audiology and speech-language pathology clinics, cadaver laboratory for physicians in training, and research laboratories. Purdue University Airport, which opened in 1930 was the first of its kind and remains one of only a few university-owned airports in the nation. Including the Niswonger Aviation Technology Building, which was dedicated in 2009, the facility symbolizes Purdue's storied relationship with aviation. West Campus The western portion of campus consists of student housing, dining, and recreation facilities. Students can play club and intramural sports at the Córdova Recreational Sports Center, the Morgan J. Burke Aquatic Center (named for former Purdue Men's Swimming & Diving Captain and longtime Vice President & Athletics Director), and the intramural playing fields in this area. The Córdova Recreational Sports Center, built in 1957, is the first building in the nation created solely to serve university student recreational needs. As a replacement for the previously separate women's and men's gymnasiums, it was originally called the "Co-recreational Gymnasium". Despite several expansions and official name changes, it has been nicknamed "the Co-rec" ever since. Stadium Avenue Much of the northern part of campus sits on land purchased for the university by industrialist David E. Ross and author and humorist George Ade in the 1920s. Many of Purdue's athletic facilities are there, including Ross–Ade Stadium (American football), Mackey Arena