The world's third tallest peak, Kangchenjunga, has been summited a number of times, but after the first climbers of the peak agreed to honor the wishes of locals and not set foot on the topmost part of the mountain, succeeding mountaineering parties may have followed this tradition. Similarly, Nanda Devi has also been climbed but the topmost summit was not ascended and the primary summit is now off limits to climbers. Machapuchare had only one summit attempt back in 1957 when climbers came within of the summit; Nepal then banned future attempts.