It's a great big world and "Good Morning America" will be exploring some of the globe's biggest sights and sounds, starting with the biggest melting pot on Earth.
America is the land of big innovations, many of which have changed the very fabric of society. Think assembly line, the airplane, plastic and PCs.
"I think America has a notion of exceptionalism," said Walter Isaacson, president of the nonprofit Aspen Institute. "Ever since the very beginning when John Winthrop talked about a...Full Story