This summer, you don't need to seek something exotic and adventurous abroad. The U.S. has plenty of adventures close at hand, from the storied Boston Harbor to a historic village in Ohio to the bridges of Yosemite Valley.
Just as with the places we recommended for spring break travel, the sites we’ve selected for your summer travel pleasure tell a unique story about our American history. Unfortunately, these places are also threatened by neglect, insufficient funds, inappropriate development or i