 Egyptian archaeologists said Tuesday they had discovered an 1,800-year-old complete residential city from the Roman-era in the heart of the southern city of Luxor.The city, dating to the second and third centuries, is the oldest and most important city found on the eastern bank of Luxor, according to Mostafa Waziri, head of Egypts Supreme Council of Antiquities.Archaeologists discovered a number of residential buildings, as well as two pigeon towers -- a structure used to house pigeons... 