States are part of countries, and countries may be grouped by other areas, like continents, hemispheres, or a political or economic body. The US is also commonly referred to in three distinct ways: as ...

Amtrak is the United States' only cross-country passenger trail service. And this means that its been tasked with moving ...

We study the causes of “nutritional inequality”: why the wealthy eat more healthfully than the poor in the United States. Exploiting supermarket entry, household moves to healthier neighborhoods, and ...

The SS United States is on its final journey, destined to become the world's largest artificial reef off the Florida Gulf ...

The United States is a collection of oddly shaped territories whose silhouettes have become instantly recognizable. How did Michigan lay claim to the Upper Peninsula and not Wisconsin? Here are ...