Here's a curious trivia tidbit from U.S. history: In 1786, Thomas Jefferson and John Adams took leave from their Europe-based diplomatic duties and traveled to Stratford-upon-Avon to visit the home of William Shakespeare. Not much was recorded of the occasion, but one fact of their pilgrimage to the Bard's birthplace stands out: At some point...

"But if the one definable feature of travel is that it has been a constant in human history, an irresistible lure to ambition or imagination, it has never achieved a reliable standing in literature. There has, in fact, always attached to it a hint of the deceptive or the deluding. 'There is nothing worse for...