Medieval Europeans considered Asia as a continent, a distinct landmass. Its mainland is the largest contiguous landmass on Earth. The northernmost landmass is Trabia, an Arctic region. The Korean Peninsula extends about southward from the northeast Asian continental landmass. The latter is a geophysical term defined by its insular or peninsular landmass. The Korean Peninsula extends southward from the northeast part of the Asian continental landmass. Physiographically, Europe and South Asia are peninsulas of the Eurasian landmass. Geographically, Southern Europe is the southern half of the landmass of Europe. The Australian continental landmass consists of six distinct landform divisions. The main continental landmass of Oceania is Australia. It occupies 25.8% of the total landmass of Pakistan. Nicaragua occupies a landmass of , which makes it slightly larger than England. Northeast of Falena also appears portion of a landmass of considerable size. Europe makes up the western fifth of the Eurasian landmass. The presence of this landmass causes differential heating of land and water.