Thimmamma Marrimanu
James Smithson never visited the United States, but he left our country an incredible gift: 100,000 coins that were to be used to fund an institution for learning and exploration . Thus was created the Smithsonian Institution in my home town . It would become not only the world's largest museum complex, but also a global leader in research. The intellectual breadth and depth of the organization enables it to publish an equally robust magazine -- every month Smithsonian draws on the global reach of the Smithsonian organization to bring a trove of geographic lessons to my mailbox. It is from the most recent issue that I learned of Thimmamma Marrimanu in Andhra Pradesh, India. What appears to be a grove of trees in the center of the map image above is in fact a single tree -- a banyan tree with its own name and a history extending more than half a millennium. Journalist Ben Crair and photojournalist Chiara Goia tell the tree's story in words and images. It is a great geograph