(CNN) — The American road trip is symbolic of adventure and discovery. Pictured here: Rand McNally road atlas 1938 and 1942. Pictured here: Rand McNally road atlas 1950 and 1952. Courtesy Rand McNallySurveying 95 years of cross-country travel, Rand McNally noted some interesting trends. Pictured here: Rand McNally road atlas 1979 and 1981.

Source: CNN April 30, 2018 12:11 UTC