Route 6 in Massachusetts runs from Provincetown to Seekonk and passes through some of the most beautiful scenery in the state. What had once been a mere footpath for Native Americans, then widened for the use of stagecoaches, Route 6 would be officially designated the "King's Highway" in 1920. The moniker was extremely unpopular with the local residents, so much so that the governor officially changed the name to the Grand Army of the Republic Highway in 1937. Depicted from the author's personal collection of postcards from the 1920s to the 1960s, Route 6 winds its way around tiny fishing villages, sand dunes, marshes, beaches, lighthouses, campgrounds, hotels, restaurants, and historic cities. The combination of Route 6 and the automobile would make Cape Cod a world-renowned tourist destination.