Seven Third Summits Sumantri () and Ngga Pulu (). The definition of "continent" is a matter of some dispute among mountaineers seeking to complete this challenge. The main ridge of the Greater Caucasus range is generally considered to form the boundary between Europe and Asia. In that case, Mount Elbrus () and Dykh-Tau (), are the two highest mountains in Europe. Excluding the Caucasus Mountains, Mont Blanc () and Monte Rosa () would be Europe's two highest mountains. The Australian continent is defined as comprising the mainland of Australia and proximate islands on the same continental shelf, including Tasmania and New Guinea. In
Mount Tianzhu Mount Tianzhu Tianzhu Mountain or Mount Tianzhu () is a mountain in Anhui, China. Tianzhu Mountain is also called Mount Wan (), from which the provincial abbreviation for Anhui ("Wan") derives. Ancient names of the mountain include Mount Huo 霍山, Mount Heng 衡山 (not to be confused with Mount Heng in Hunan Province), and Taiyue 太岳. The mountain is located in Qianshan County, Anqing City. Tianzhu Mountain has 45 peaks which are 1000 metres above sea level. Its highest point has an elevation of . There are two paths to reach the top, either from the east or from the