More than four million people a year visit Valley Forge, one of America's most celebrated historic sites. Here, amid the rolling hills of southeastern Pennsylvania, visitors can pass through the house which served as Washington's Headquarters during the famous winter encampment of 1777–1778. Others picnic and jog in the huge park, complete with monuments, recreated log huts, and modern visitor center, all built to pay tribute to the Valley Forge story. In this lively book,...