New restoration work at the Kasta Tomb in Amphipolis is offering archaeologists their clearest picture yet of the vast ancient burial monument, widely considered one of the most important archaeological discoveries connected to ancient Macedonia.
Greek Culture Minister Lina Mendoni visited the site this week as restoration crews continued work around the massive tumulus. The visit focused on the latest stage of the project, which has gradually uncovered the monument’s original form and surrounding enclosure.
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Workers have now exposed the entire marble perimeter surrounding the mound, measuring close to 500 metres in circumference. Officials involved in the project say the scale of the structure is far greater than originally understood when excavations first began.
The mound itself dominates a large section of the landscape near ancient Amphipolis in northern Greece. Archaeologists believe the monument dates to the final decades of the 4th century BC, during the turbulent years following the death of Alexander the Great.
Parts of the southern enclosure wall have already been reconstructed using original marble blocks recovered from the site over the course of previous excavations. Only limited replacement material has been introduced where structural support was required.
At the same time, engineers have been reshaping sections of the hill to restore the mound’s original geometry. Drainage channels and water management systems are also being installed beneath the surface to reduce long-term erosion and rain damage.
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Inside the burial monument, earlier steel supports and temporary reinforcement structures have now been removed. The internal chambers, previously obstructed during stabilisation work, are once again visible.
Restoration teams recently completed repairs to the stone arch above the burial chamber. Attention is now shifting towards the reinstallation of the monumental marble door believed to have sealed the chamber in antiquity. Conservators are also preparing work on the sphinx sculptures found at the entrance to the tomb.
Archaeologists say the wider site contains traces from several historical periods beyond the original construction phase. Evidence linked to Roman dismantling of the marble enclosure has been identified around the perimeter, including remains of ramps and lifting points used to remove heavy stone blocks centuries later.
On one side of the mound, specialists also identified remnants of a simple mudbrick retaining structure, believed to reflect later attempts to stabilise the slopes.
During the inspection, Mendoni said the monument’s size places it among the largest burial mounds discovered in Macedonia. According to the Ministry of Culture, the mound exceeds 140 metres in diameter.
Researchers continue to examine the monument’s origins and purpose. Although no official conclusion has been reached regarding who was buried there, the scale and luxury of the structure strongly suggest links to the upper ranks of the Macedonian world during the Hellenistic era.
The restoration programme involves archaeologists, engineers, architects, conservators, and scientific teams from several Greek institutions. Officials say the work is being carried out gradually because of the monument’s fragile condition and the technical difficulties involved.
The overall cost of the project is expected to surpass €15 million, funded through regional and European development programmes.
Plans are also under way for visitor infrastructure and a museum area near the site. Greek authorities currently aim to reopen the monument to the public in 2028.
Sources : Greek Ministry of Culture
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