As the Los Angeles area begins the formidable task of rebuilding after the most destructive wildfires in its history, the city's artists and art collectors are mourning what could amount to billions of dollars in irreplaceable art that went up in flames.

More than 50,000 people were under evacuation orders or warnings Wednesday as a huge and fast-moving wildfire swept through rugged mountains north of Los Angeles, as parched Southern California endured another round of dangerous winds and two major previous blazes continued to smolder.