Travel writer extraordinaire Pico Iyer wrote a story about this in Salon Travel:
"We travel, then, in search of both self and anonymity -- and, of course, in finding the one we apprehend the other. Abroad, we are wonderfully free of caste and job and standing . . . people cannot put a name or a tag to us. And precisely because we are clarified in this way, and freed of inessential labels, we have the opportunity to come into contact with more essential parts of ourselves (which may begin to explain why we feel most alive when we are far from home)."