A 2,300-year-old fortress that protected an ancient port called "Berenike" has been discovered in Egypt on the coast of the Red Sea... Constructed at a time when Egypt was ruled by the Ptolemies, a dynasty of pharaohs descended from one of Alexander the Great's generals, the fortifications are sizable. "A double line of walls protected the western part of the fortress, while a single line sufficed farther to the east and north. Square towers were built at the corners and in strategic places where sections of the walls connected," wrote archaeologists Marek WozÌniakand Joanna Rądkowska in an article recently published...