The state of the art in high-rise living, New York City's Time Warner Center features all the amenities: a health club, restaurants, dry cleaners, top notch security, and citywide views. But high-rise, high-density living isn't new. Romans were living in high-rise apartments 2,000 years ago. Host Michael Guillen travels to Rome and its ancient seaport of Ostia where a number of them still exist.