Strange, it has not been GEC layered, nor my "forum-search" gave results, so: now here you are!
Photo of the aircraft prior to its last mission, Ladd Army Airfield, Alaska Territory, 19 February 1947
The Kee Bird was a United States Army Air Forces Boeing B-29 Superfortress, serial 45-21768, of the 46th Reconnaissance Squadron, that became marooned after making an emergency landing in northwest Greenland during a secret Cold War spying mission on 21 February 1947. While the entire crew was safely evacuated after spending three days in the isolated Arctic tundra, the aircraft itself was left at the landing site. It lay there undisturbed until 1994, when a privately funded mission was launched to repair and return it. The attempted recovery resulted in the destruction and loss of the airframe by fire on the ground. ...
NASA photo of the remnants of Kee Bird, 1 May 2014