(2 km) of bike paths, 22 computer labs, an 18-hole golf course on 150 acres (61 ha), 80 acres (32 ha) of arboreta, and 860 acres (1.3 sq mi; 3.5 km2) of farms.
=== Administration Building ===
The Administration Building, with its eighty-foot (24 m) clock tower and Collegiate Gothic-style structure, was built from 1907 to 1909 and has become an icon of the university. The building holds classrooms, an auditorium, and administrative offices, including the offices of the President and Provost. Multiple expansions were made, with the north wing added in 1912, the eastern portion of the south wing in 1916 (extended west in 1936 for the library), and the functional annex in 1950, incorporated into the Albertson addition of 2002. The U of I library was housed in the Administration building until 1957, when the Library building opened, constructed on the former site of tennis courts. The College of Law occupied the south wing until its building (Menard) opened in 1973.
The original Administration building, with a single …