Israeli archaeologists have discovered a secret stash of Byzantine-era coins inside a stone wallâwhere someone may have once tried to hide them.Made of pure gold, the 44 coins are decorated with portraits of Emperors Phocas and Heraclius, who ruled in the first half of the seventh century. Experts believe the treasure, which is dated to 635 C.E., was hidden during the Muslim conquest of the area around the end of Heraclius' reign.The artifacts were unearthed as part of a larger excavation in the ancient city of Banias, now a part of Hermon Stream Nature Reserve in the Golan Heights, an...