Cairo AP  —  The Grand Egyptian Museum will open 12 halls with exhibits about ancient Egypt in its main galleries starting this week in a trial run ahead of the still-unannounced official opening, officials have said. The museum, a mega-project near the famed Giza Pyramids which has cost well over $1 billion so far, will open the halls for 4,000 visitors per day starting Wednesday, said Al-Tayeb Abbas, assistant to the minister of antiquities. The museum has been under construction for more