The Pamir Mountains are a mountain range in Central Asia formed by the junction of the Himalayas with Tian Shan, Karakoram, Kunlun, and Hindu Kush ranges. They are among the world’s highest mountains, and since Victorian times, they have been known as the “Roof of the World” presumably a translation from Persian. In other languages they are called: Kyrgyz Памир тоолору Pamir Toolori; Reshte Kūh-hāye Pāmīr; Tajik: Ришта Кӯҳҳои Помир Rishta Kuhhoyi Pomir; Da Pamir Ghruna; Uyghur: پامىر ئېگىزلىكى Pamir Ezgizliki; Urdu: پامیر کوهستان Pamir Kuhestan; or “Onion Range” (after the wild onions growing in the region). The name “Pamir” is used more commonly in Modern Chinese and loaned as . The precise extent of the Pamir Mountains is debatable. They lie mostly in Gorno-Badakhshan province, Tajikistan and Badakshan Province, Afghanistan. To the north they join the Tian Shan mountains along the Alay Valley of Kyrgyzstan. To the south they join the Hindu Kush mountains along the Wakhan Corridor (or Wakhjir Pass) in Afghanistan and Gilgit–Baltistan in Pakistan. To the east they may end on the Chinese border or extend to the range that includes Kongur Tagh which is sometimes included in the Kunlun Mountains.