Biggest-ever Roman wall mosaic, featuring mysterious port city, revealed

By Barbie Latza Nadeau, CNN Rome (CNN) — The city of Rome has revealed for the first time the biggest Roman wall mosaic ever found, and a colorful fresco painted on a 2,000-year-old wall — the culmination of a massive 14-year restoration project. Ten meters (33 feet) high and 16 meters (52 feet) long, the