In terms of culture, history, street life and great food Mexico City is the western hemisphere's equal to many of Europe's great cities — and one of the largest cities in the world. Two former New Yorkers tell us why they were charmed by Mexico City, why they moved there, and wrote guides to help visitors enjoy it, too. For more information on Travel with Rick Steves - including episode descriptions, program archives and related details - visit www.ricksteves.com.