Interactive. The true size of nations

How big is the United States compared to Africa? How about Massachusetts compared to Estonia? Try entering the names of countries and states on this interactive map, and then dragging them around to compare them by superimposing one on top of another. Because this map uses the Mercator projection—a standard for many Web maps—you’ll also notice how the sizes of countries change as you drag them towards the Equator or the poles.

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