<P> This list of islands by area includes all islands in the world greater than 2,500 km (970 sq mi) and several other islands over 1,000 km (390 sq mi), sorted in descending order by area . For comparison, continents are also shown . </P> <P> Although the continental landmasses listed below are not normally called islands (by definition a landmass cannot be both an island and a continent), they are, in fact, land entirely surrounded by water . In effect, they are enormous islands and are shown here for that reason . The figures are approximations and are for the continental mainland only . </P> <Table> <Tr> <Th> Rank </Th> <Th> Landmass </Th> <Th> Area (km) </Th> <Th> Area (sq mi) </Th> <Th> Country or countries </Th> </Tr> <Tr> <Td> </Td> <Td> Afro - Eurasia </Td> <Td> 85,000,000 </Td> <Td> 33,000,000 </Td> <Td> Various </Td> </Tr> <Tr> <Td> </Td> <Td> Americas </Td> <Td> 42,300,000 </Td> <Td> 16,300,000 </Td> <Td> Various </Td> </Tr> <Tr> <Td> </Td> <Td> Antarctica </Td> <Td> 14,000,000 </Td> <Td> 5,400,000 </Td> <Td> None (various countries have territorial claims) </Td> </Tr> <Tr> <Td> </Td> <Td> Australia </Td> <Td> 7,600,000 </Td> <Td> 2,900,000 </Td> <Td> Australia </Td> </Tr> </Table> <Tr> <Th> Rank </Th> <Th> Landmass </Th> <Th> Area (km) </Th> <Th> Area (sq mi) </Th> <Th> Country or countries </Th> </Tr>

Where are most of the worlds landmasses located