Where can one find the world's largest mounted African elephant? Or the world's largest blue diamond? Why, at the world's largest museum complex and research organization, of course In S is for Smithsonian(R) readers can take an armchair tour of the incredible exhibitions and collections found in the Smithsonian Museum. When it opened in 1855, no one could have imagined that the Smithsonian Museum would grow to include 19 museums, nine research centers,...