I have never been especially drawn to landmarks. Battlefield plaques, preserved taverns, roadside markers — I understand the appeal, and I have stopped for a few. But they have always seemed less like history than tombstones: fragments of a past life that meant far more to those who erected them than to those who pause to read them decades later.What an idiot I was. Brady J. Crytzer’s The National Road: George Washington and America’s First Hig…