Today, not even a marker commemorates the dozens of demonstrations that followed along the road, and most travellers zoom by the area on Interstate 95, one of the busiest highways in the country. But if they look carefully, they can find traces of the remarkable story of US Route 40, which parallels Interstate 95 in northern Maryland. https://www.bbc.com/travel/article/20220306-the-us-highway-that-helped-break-segregation