A 3d virtual reconstruction model made by Ing. Nikolaos Alexandrou.

In 2012 Greek archaeologists unearthed northeast of Amphipolis at a location called the Kasta Hill, a vast tomb, the biggest burial tomb ever unearthed in Greece. The perimeter is 497 meters long, and is made of limestone covered with marble.

Until today (September 19, 2014) there are three sections revealed by the excavation, each closed with a stone wall. There are two sphinxes just outside the entrance to the tomb. Two of the columns supporting the roof in the first section are in the form of Caryatids, apparently mimicking the fourth ce. BC style.

The large size of the tomb indicates the prominence of the burial made there. The identity of the burial remains unknown, since the excavation is still going on.

Wikipedia