23.08.2026
20:35
source:
StadiumDB.com ;
author:
Paulina Skóra
The Panathinaiko Stadio in Athens, also known as Kallimarmaro, is currently undergoing the first systematic cleaning and conservation of its Pentelic marble in more than 120 years.
Cleaning the marble at Panathinaiko Stadio requires exceptional care
The work began at the sphendone, the curved section of Panathinaiko Stadio, and the first stage is scheduled to be completed in early September. The project will continue afterwards, with final completion planned for November–December 2026.
The scope of the work is particularly challenging due to the character of the venue. The stadium is built entirely from white Pentelic marble, the same material used, among other places, in the construction of the Acropolis. After more than a century of use, its surfaces have accumulated dirt caused by the passage of time, weather conditions and millions of visitors.
The cleaning is being carried out using the most delicate natural methods possible. Conservators use clean water at controlled, low pressure, while accredited specialists supervise the work. The project also follows recommendations from architect and academic Manolis Korres in order to minimise interference with the historic material.
The work covers all 47 rows of the stands. Specialised equipment sprays water onto the marble surface, while other machines remove and collect the water generated during the cleaning process. Steam is also being used. The aim is not to make the marble completely white, but to remove accumulated pollutants and the first layers of organic matter.
Vegetation is a particular problem, as it can leave stains and other marks on the marble. Everyday sources of dirt also include chewing gum, high-heeled footwear and spilled drinks.
© Ania Mendrek | Panathenaic Stadium in Athens is undergoing its first systematic marble cleaning in more than 120 years. The delicate conservation work aims to restore the shine of Pentelic marble without damaging the historic structure.
New track and return of major competitions to Panathinaiko Stadio
The marble cleaning is not the only project currently underway at the venue. At the same time, the athletics track is being replaced. The aim is to prepare Panathinaiko Stadio once again to host major international athletics competitions, including potentially Diamond League events. The project is being carried out on the initiative of the Hellenic Olympic Committee and funded by Capital Maritime & Trading Corp., owned by Vaggelis Marinakis.
© Anna & Michal | Kalimarmaro is regaining its distinctive glow. Alongside the cleaning of all 47 rows of stands, the athletics track is being replaced to prepare the stadium for the return of major track and field events.
The stadium of the first modern Olympic Games
Panathinaiko Stadio has exceptional significance in the history of world sport. The venue was rebuilt for the first modern Olympic Games in 1896 and has since become one of the most important symbols of the Olympic movement. It is also the venue for ceremonies associated with the handover of the Olympic flame, including those held ahead of the 2028 Los Angeles Games.
For more than a century, the stadium has hosted far more than sporting events. Marathon runners, athletes from successive generations and rock music stars have all appeared on its track and in front of its stands. The historic venue is now undergoing a process designed to restore the former brilliance of its marble surfaces without damaging the historic fabric of the monument.
As the work progresses, the characteristic shine of the white marble is gradually returning. It is this marble that gave the stadium its Greek name, Kallimarmaro, meaning beautiful marble.