This map from the Regional Plan Association, an urban research institute in New York, shows how the country is really organized — and it's not primarily around individual cities. Instead, their America 2050 project proposes that we begin to view the country's urban areas not as discrete metropolitan areas but as interconnected "megaregions." Megaregions are areas where large cities and the spaces in between share "interlocking economic systems, shared natural resources and ecosystems, and common transportation systems."