The QNNP contains along its border with Nepal four of the world's six highest mountains: Everest, Lhotse, Makalu, and Cho Oyu. Also in this preserve is Shishapangma, 14th highest, the only eight-thousander meter peak totally in China. The preserve holds Rongbuk Monastery, the highest monastery in the world at 4,500 meters and the highest agricultural fields in the world at 4,300 meters. In addition, the preserve has key pilgrimage sites for Tibetan Buddhism's most famous poet saint, Milarepa.