and classes, while De La Salle is primarily used by the business school. The fourth side of the Quad is bordered by the chapel building, which houses Smith Auditorium (used to host receptions, speakers, and performances) on the first floor and the Chapel of De La Salle and His Brothers on the second floor, which features a painting of De La Salle and Brothers behind the altar, a large performing area where musical events and concerts take place on the altar, a grand piano, and a pipe organ in the balcony. Thomas Hall, one of the institution's student life building, houses the offices of the Dean of Students, the student government, the musical ensembles, and others. Two of the institution's dining halls, Locke's Loft and Cafe 1853 are also located in Thomas Hall. The brand new Kelly Commons, named after notable alumnus Raymond Kelly, is another student life building that was completed in 2014. It holds a Starbucks, a Marketplace, multiple different dining options, a state-of-the-art gym for student and faculty use, the Multicultural Center, halls for lectures and events, the student bookstore and the office for the student-run newspaper, The Quadrangle. The O'Malley Library is a six-story structure that was joined with the previous library, the Cardinal Hayes Pavilion. Built on a hill, the new library was built directly next to and above the old one, essentially combining the two and creating more floors, while enhancing technology and adding group study spaces. The Office of Admissions is on the sixth floor of O'Malley. Hayden Hall is on the east side of campus and houses the sciences as well as the department of fine arts. The Kakos Center for Scientific Computing may also be found here, which contains a cluster of high performance workstations used for a wide variety of scientific and economic projects. On the South campus, across 240th street, is the Leo Engineering Building and the Research and Learning Center (RLC). The two are home to all of the engineering departments: electrical, computer, civil, chemical, mechanical, and environmental, along with the math and computer science departments and all communication classrooms, computer labs, and broadcasting studios. Laboratories and classes for these disciplines take place in both buildings. Both biology and chemistry laboratories are also located in Leo. This building once contained a working nuclear reactor, which was decommissioned and stripped of its nuclear fuel and power generating capabilities in