 In some towns, the area near the Boston Post Road has been placed on the National Register of Historic Places, since it was often the first road in the area, and some buildings of historical significance were built along it.The Boston Post Road Historic District, including part of the road in Rye, New York, has been designated a National Historic Landmark.The Post Road is also famous for milestones that date from the 18th century, many of which survive to this day.