Burbank, California

In search of America’s lost treasures, Curt and Kinga host an open call at the Autry National Center in Los Angeles, California, uncovering and investigating treasures that include a medal from the first U.S. World Expo, a Jack London writing tablet, an old Civil War drum, John Sutter’s Gold Rush Nuggets, and a 15-million-year-old dolphin skull. But which of these artifacts deserves the $10,000 prize?