Overview
Engineers and World War II historians investigate Hitler's fearsome bank of "superguns."
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43 - 1Dawn of Humanity September 16, 2015 -
43 - 2Arctic Ghost Ship September 23, 2015 -
43 - 3Secrets of Noah's Ark October 07, 2015 -
43 - 4Cyberwar Threat October 14, 2015 -
43 - 5Animal Mummies October 28, 2015 -
43 - 6Making North America: Origins November 04, 2015 -
43 - 7Making North America: Life November 11, 2015 -
43 - 8Making North America: Human November 18, 2015 -
43 - 9Inside Einstein's Mind November 25, 2015 -
43 - 10Secret Tunnel Warfare January 06, 2016 -
43 - 11Life's Rocky Start January 13, 2016 -
43 - 12Mystery Beneath the Ice January 20, 2016 -
43 - 13Himalayan Megaquake January 27, 2016 -
43 - 14Creatures of Light February 03, 2016 -
43 - 15Memory Hackers February 10, 2016 -
43 - 16Iceman Reborn February 17, 2016 -
43 - 17Rise of the Robots February 24, 2016 -
43 - 18Vikings Unearthed April 06, 2016 -
43 - 19Can Alzheimer's Be Stopped? April 13, 2016 -
43 - 20Wild Ways April 20, 2016 -
43 - 21Operation Lighthouse Rescue May 04, 2016 -
43 - 22Bombing Hitler's Supergun May 11, 2016
