Greenland also has a pretty interesting one. The Kee Bird. There's a really cool documentary on it here. https://en.wikipedia.org/wiki/Kee_Bird https://en.wiki

Greenland also has a pretty interesting one. The Kee Bird. There's a really cool documentary on it here. https://en.wikipedia.org/wiki/Kee_Bird https://en.wikipedia.org/wiki/Kee_Bird http://www.pbs.org/wgbh/nova/military/b29-frozen.html http://www.pbs.org/wgbh/nova/military/b29-frozen.html