"América es muy grande."
Translation:America is very big.
It's about the same size as either one alone, though, which is pretty spectacular to think about.
Now that I think about it, I want to see how they compare on the classic Western map projections. They tended to exaggerate the size of European countries; while not relevant to the OP, I'll bet some people still think Russia IS of similar size to the two continents.
Well, not European countries, but countries further away from the equator in either direction. There is a cool website called "truesize.com" You have a world map and you can take countries and drag them over the map. They are rescaled automatically, so you can compare the sizes of two countries visually. Brazil is a lot bigger than it looks on the map (since it is more or less centred around the equator), Russia is smaller than it looks (even though it is still huge). Russia is slightly smaller than Southern America (copy the whole link...or just use the app yourself):