Australia's closest neighbour is Papua New Guinean. From the tip of Cape York Peninsula in Australia's north to the closest point in Papua New Guinea is a distance of only 150 km. Given the numerous islands across Torres strait! which lies between the two countries, theoretically they are even closer.
which civilization was closest neighbor
USA is the closest southern neighbor of Canada.
Mexico is the closest southern neighbor for most of the US.
Australias an island, so it has none =.=, PNG, Nz, Malaysia and Antarctica are pretty close to it though.
Switzerland
Switzerland
mars
Tibet's closest neighbor is Nepal.
poutugal
Saturn's closest neighbors are Jupiter and Uranus
.... well that depends on where you are....
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