a design that has been called a "big beige box with bands of bricks". In 2009 the Humanities Gateway building, designed by Curtis W. Fentress, was opened. Its curvilinear design marked a return to the sculptural treatment of concrete begun by Pereira. As of 2005, the campus has more than 200 buildings and encompasses most of the university's . The campus is in the midst of a $1.1 billion construction campaign. Libraries and study centers In addition to holding a noted Critical Theory archive and Southeast Asian archive, the Libraries also contain extensive collections in Dance and Performing Arts, Regional History, and more. Additionally, Langson Library hosts an extensive East Asian collection with materials in Chinese, Japanese, and Korean. Nearly all departments and schools on campus complement the resources of the UC Irvine Libraries by maintaining their own reading rooms and scholarly meeting rooms. They contain small reference collections and are the choice for more intimate lectures, graduate seminars, and study sessions. There is also the large Gateway Study Center located across from Langson Library, one of the university's original buildings and under the custody of UC Irvine Libraries. Having served formerly as a cafeteria and student center, it is now a dual-use computer lab and study area which is open nearly 24 hours. The UCI Student Center offers a large number of study areas, auditoriums, and two food courts, and therefore is one of the most popular places to study on campus. UC Irvine also has a number of computer labs that serve as study centers. The School of Humanities maintains the Humanities Instructional Resource Center, a drop-in computer lab specializing in language and digital media. Additionally, UCI maintains five other drop-in labs, four instructional computer labs, and a number of reservation-only SmartClassrooms, some of which are open 24 hours. Other popular study areas include Aldrich Park, the Cross-Cultural Center, the Locus (a study room and computer lab used by the Campuswide Honors Program), and plazas located in every school. Together, the UCI libraries have issued a land acknowledgement that the UCI campus is located on the traditional, ancestral, and unceded territories of the Acjachemen and Tongva. Tunnels A network of tunnels runs between many of the major buildings on campus and the Central Plant, with the major trunk passage located beneath Ring Mall. Smaller tunnels branch off from this main passage to reach individual buildings, carrying electrical and