It's actually a Hollywood Landmark know as The Cross at Caheunga but often called the Hollywood Cross.You can read about the history of it at the webpage below.
Truly… God shines brighter than all the stars in Hollywood.
The cross above the Hollywood Bowl is an actual historical landmark. It can be seen today on the hill in the Cahuenga Pass across the street from the Hollywood Bowl. It can be seen clearly from inside the Bowl. The cross was erected in 1924 to honor and recognize actress Christine Wetherill Stevenson's dedication and efforts in establishing the Hollywood Bowl, The Pilgrimage Theatre (Now John Anson Ford) and her service to humanity.