7.Argentina and Brazil

Border: Iguazu Falls
Area: 1,224 km* (total border length)
Est. Gross Domestic Product: $1.013 trillion (Argentina) / $3.351 trillion (Brazil)*
Argentina and Brazil are separated by the magnificent Iguazu Falls, a magnificent natural wonder. The Iguazu Falls, which are made up of more than 270 cascades spanning the river, produce a breathtaking exhibition of the strength and beauty of nature. This UNESCO World Heritage site provides a singular experience from both countries; Brazil offers panoramic views of the enormous expanse of cascading water, while Argentina hosts most of the falls, including the well-known Devil’s Throat.