Giorgos ChristidesSpecial for BBC, Amphipolis, Greece23 September 2014image source, access pointcaption, What illustrious figure from the ancient world do these stone guardians protect?The discovery of a huge tomb in northern Greece has fascinated the whole world.Who is buried there? they wonder.In early August, a team of Greek archaeologists led by Katerina Peristeri unearthed what authorities say is the largest burial site discovered in the country. And data from the time of Alexander the Great.image source, Greek Ministry of Culturecaption, Archaeologists still don't know who the mysterious Amphipolis tomb belongs to.The tomb is in ancient Amphipolis, an important city of the…