Kashmir is the northernmost geographical region of the subcontinent. Until the mid-19th century, the term "Kashmir" denoted only the Kashmir Valley between the Great Himalayas and the Pir Panjal Range. Today, it denotes a larger area that includes the Indian-administered territory of Jammu and Kashmir (which includes the divisions Jammu, Kashmir Valley, and Ladakh). One of the most scenic tourist locations in the world, it is often referred to as “Heaven on Earth”. Some of the major tourist attractions in Jammu and Kashmir are Srinagar, the Mughal Gardens, Gulmarg, Pahalgam, Patnitop, Jammu, and Ladakh. Some areas require a special permit for non-Indians to visit. The major airports are the Srinagar International Airport in Srinagar, the Kushok Bakula Rimpochee Airport in Leh, and the Jammu Airport in Jammu. The major railway station is Jammu. The best times to visit Jammu and Kashmir are from September to early March.