Some of the 30 varieties of palms are in the ground, but most are in large wooden boxes above ground.[74][75] Directly in front of the new entrance to LACMA on Wilshire Boulevard, where Ogden Drive once bisected the 20-acre campus between Wilshire Boulevard and 6th Street, is Chris Burden's Urban Light (2008), an orderly, multi-tiered installation of 202 antique cast-iron street lights from various cities in and around the Los Angeles area. The street lights are functional, turn on in the evening, and are powered by solar panels on the roof of the BP Grand Entrance.