TOPSHOT - A firefighter works at the scene of the Bobcat Fire burning on hillsides near Monrovia Canyon Park in Monrovia, California on September 15, 2020. - A major fire that has been raging outside Los Angeles for more than a week threatened to engulf a historic observatory and billion-dollar broadcast towers on September 15 as firefighters struggled to contain the flames. The so-called Bobcat Fire was within 500 feet (150 meters) from the 116-year-old Mt. Wilson Observatory, the US Forest Service said in a tweet, while fire officials said crews were in place "ready to receive the fire." (Photo by RINGO CHIU / AFP)