AmericaJR’s Jason Rzucidlo recently visited the San Diego History Center within the Balboa Park complex. “San Diego Invites the World” is the definitive exhibition of the Panama-California Exposition. It is celebratory and engaging, demonstrating the legacy of the Expo that put San Diego on the map and created the nation’s largest urban cultural park. Four million visitors streamed through the Expo gates during its two-year run from 1915 through 1916 and showcased San Diego to the world. View rare Expo silent film footage, historic photos, the official Guest Book and unique memorabilia.