Archaeologists have unearthed the remains of a 4,500-year-old temple dedicated to the Egyptian sun god Ra at the site of Abu Ghurab, about 12 miles (20 kilometers) south of Cairo.The temple was built sometime during ancient Egypt's fifth dynasty (circa 2465 B.C. to 2323 B.C.)...The newly uncovered sun temple was made from mud bricks and measured at least 197 feet long and 66 feet wide (60 meters by 20 m). It contained an L-shaped entrance portico, a courtyard, storage rooms and rooms that may have been used for cultic purposes, Nuzzolo told Live Science in an email. "The walls of...