This Alaskan island is so remote that only researchers with permits are allowed to visit. When archaeologists discovered a nearly 80 foot long artifact embedded in a hillside, it shone a light on an astonishing piece of forgotten history: this remote patch of US soil was once conquered and occupied by a wartime adversary. 🪖 #SecretsInTheIce #history | Science Channel

Indigenous Peoples of Alaska battle extreme temperatures and a harsh landscape but still survive and thrive for generations. Follow different communities and tribes of the original inhabitants of Alaska who are relying on ancient wisdom to ensure their survival for the next thousand years. First Alaskans, Thursdays at 10pm, on National Geographic UK. | National Geographic UK