The completed Crissy Field reopened in 2001. New and rebuilt sidewalks, boardwalks, and trails connect the field north to Fort Point, the Warming Hut (a cafe), and south to the Crissy Field Center, an environmental education center, and the Marina District. Since that time many buildings were restored and leased out as housing, office space, retail, and recreational facilities. The old temporary wood barracks were demolished and the grass airfield restored. Letterman Army Hospital, a large concrete structure, literally was ground to dust and the concrete recycled. In its place George Lucas relocated Industrial Light & Magic.