The story of America’s interstates is usually told as a straightforward tale of postwar progress, but the real origins are stranger and more contested than the green signs suggest. The Dwight D.

In a nation divided by geography and politics, the United States Interstate Highway System brings us together. It gets us to work. It satisfies our wanderlust. It is such a part of our quotidian lives ...

There are a number of different road designations in the United States, from highways and freeways to interstates and routes, and it can cause some confusion with different laws and regulations.

Beyond the questionable accuracy of even modern maps, none are thought to include all the shaft openings, test pits, entrances and even entire mines that were constructed in New Jersey. Interstate 80 ...