States are part of countries, and countries may be grouped by other areas, like continents, hemispheres, or a political or ...

Deep in the Pacific Ocean lies a chain of islands cut off from the rest of the world. Here life from all across the world has come to establish itself, only to find an environment unlike any other the ...

People my age grew up with a map of the world that had been created by Flemish cartographer Gerardus Mercator in 1569. But in ...

Your web browser (Internet Explorer) is out of date. Some things will not look right and things might not work properly. Please download an up-to-date and free ...