There are nine political continents on Earth, making up the landmasses and islands around the world. In addition, there are four neutral zones, consisting almost entirely of ocean.
North America, Central America and South America are all located on the same landmass known as 'America' or 'the Americas'. Europe, Asia and the Middle East are located on the same landmass as well, known as 'Eurasia'.
There are four neutral zones, each consisting almost entirely of ocean. There are some small islands scattered in those neutral zones, but all of them are uninhabited. Countries from the continents bordering the neutral zones, make an agreement to oversee and take care of the zones.
Neutral Zone 1 borders North America, Central America, South America, Europe and Africa. It also borders Neutral Zone 2.
Neutral Zone 2 borders South America, Africa and Antarctica. It also borders Neutral Zone 1.
Neutral Zone 3 borders Africa, Asia, Oceania and Antarctica.
Neutral Zone 4 borders Asia and Oceania.