Relive your favorite highlights and programs through our National Geographic Channel DVD collections. Explore the natural environment with our animals and nature DVDs, as well as programs on science and technology. Immerse yourself in politics and history through When Rome Ruled and the Inside the State Department DVD collections. Explore the world through a new lens with America Before Columbus, Secrets of the Titanic and Lewis and Clark exploration DVDs. You can find your favorite National Geographic Channel programs at the National Geographic Store DVD collection.