A video produced for the Columbus Historical Society to highlight a few of the historical and civic treasures of Ohio's capital city.            Cliff Tyree, a social worker from Columbus, Ohio, talks about life during the civil rights era and attending Dr. Martin Luther King's funeral in 1968.             Ellen Roberts, president of Columbus Regional Airport Authority, introduces Don Casto III, who talks about his grandfather, Don Casto, Sr., a traveler aboard the Graf Zepplin in 1928.             Cromwell Dixon was inspired to build balloons from 1905 and flew his Skycycle from 1907 to 1911, when he became a licensed pilot, flying Glenn Curtiss Pusher airplanes.