The virtually unknown Chinese pyramids are historic monuments that now struggle against the ravages of time and the elements. The elaborate walls of one grand structure were accidentally discovered by U.S. pilot James Gaussman towards the end of the Second World War. His engine failed when returning from a mission to aid the Chinese army en route to his base in Assam, India. Flying over Xi'an at a low altitude, Gaussman was astonished at the site of an enormous pyramid in the distance. The pilot did not waste this precious opportunity, and flew over, taking the photographs that would later accompany a report presented to U.S governmental authorities. In 1947, another U.S. pilot, keen to the legend of Gaussman's mysterious 'Great White' Chinese pyramid, flew close enough to the structure to catch a glimpse for himself. He estimated the ancient wonder to stand nearly 1500 ft high in comparison to Egypt's great pyramid of Giza which stands a mere 480 ft. from base to vertex. Yet this miraculous pyramid remained a closely guarded secret, kept hidden from the prying eyes of international investigation by Chinese authorities.