Malay Archipelago. Indonesia currently controls Western New Guinea, which is culturally associated with Oceania, and geologically a part of the Australian landmass. Moreover, Indonesian territories include the province of East Nusa Tenggara (which Timor-Leste shares a border with) and the Moluccan archipelago, both of which lie within Wallacea and have been considered as geographical and cultural intersections of Asia and Oceania. Antarctica and other continents Sub-Antarctic region Argentina, Australia, Chile, France, New Zealand, Norway, South Africa, and the United Kingdom: These eight states have overseas island possessions in the Subantarctic region between 46°S and 60°S latitude. Subantarctic islands that are north of 60°S latitude but south of the Antarctic Convergence and that are by international law as being full sovereign possessions of an administering state are: Bouvet Island (Norway), Heard Island and McDonald Islands (Australia), the Kerguelen Islands (France), and South Georgia and the South Sandwich Islands (United Kingdom). The United Nations categorize Bouvet Island and South Georgia and the South Sandwich Islands as part of South America, and Heard Island and McDonald Islands as part of Oceania. South Georgia and the South Sandwich Islands is sometimes considered to be geographically within the bounds of South America; however, the other islands are among the most isolated locations in the world. Human activity is very limited on Bouvet Island and Heard Island and McDonald Islands; for example, the McDonald Islands have only ever been visited twice throughout their entire recorded history, with the last visit being in 1980. The World Factbook categorize Bouvet Island and Heard Island and McDonald Islands as part of Antarctica rather than South America/Oceania. Antarctic region Argentina, Australia, Chile, France, New Zealand, Norway, and the United Kingdom: These seven states claim portions of the Antarctic mainland (some of them overlapping), as well as its associated islands south of 60°S latitude. Some, including Argentina and Chile, consider the Antarctic land they claim to be integral parts of their national territory. However, none of these claims are recognized by the United Nations and the international community. Since 1961, the Antarctic Treaty System has held in abeyance all land claims south of 60°S latitude, including Antarctica's ice shelves and Antarctic islands. Countries formerly and/or never widely or officially considered as transcontinental countries Asia and Oceania , , the and : The Malay Archipelago, located between Melanesia and mainland Southeast Asia, can be considered a transcontinental region. Many initial 19th century