In Washington, D.C. the Trustees of the National Geographic Society gather to have a formal portrait taken. The picture will help commemorate the Society's Centennial. In 1988 Geographic completes one hundred years of exploration, research, and education. Everybody looking right at the lens. Ready? All right. Okay. Fine. Right here. Nice big smile now. Come on. Here, in 1913, a similar photograph was taken. Back then, the highest mountain had yet to be climbed, and no one knew the ocean deep, or what fire illuminates the stars. All this lay in the future the greatest adventure mankind has ever known. The explorers have left monuments all over the world. One of the most meaningful, and at the same time little-known, is to be found high on a hilltop in Nova Scotia. Here, alone with the sigh of the wind, are the graves of Alexander Graham Bell and his wife, Mabel. Bell called their estate here Beinn Bhreagh, or "beautiful mountain" In the late 1800s Bell spent much of his time promoting the National Geographic Society.