The main campus of Brigham Young University sits on approximately 560 acres (2.3 km2) nestled at the base of the Wasatch Mountains and includes 311 buildings. The buildings feature a wide variety of architectural styles, each building being built in the style of its time. The grounds and landscaping of the campus won first place in 2005 in America in Bloom's campus division. Furthermore, views of the Wasatch Mountains, (including Mount Timpanogos) can be seen from the campus. BYU's Harold B. Lee Library, which The Princeton Review ranked as the #1 "Great College Library" in 2004, has approximately 8½ million items in its collections, contains 98 miles (158 km) of shelving, and can seat 4,600 people. The Spencer W. Kimball Tower is home to several of the university's departments and programs and is the tallest building in Provo, Utah. Furthermore, BYU's Marriott Center, used as a basketball arena, can seat over 22,000 and is one of the largest on-campus arenas in the nation.