The restoration of the Stoa of Attalos in Athens, completed in the 1950s, stands as a remarkable achievement in the preservation of ancient Greek architecture. Originally built in the 2nd century BC by King Attalos II of Pergamon, the stoa was reconstructed using meticulous archaeological research and traditional building materials, including Pentelic marble. This choice of marble, identical to that used in the ancient structure, ensures that the restored stoa maintains its historical authenticity and aesthetic integrity. The project, spearheaded by the American School of Classical Studies at Athens, involved extensive efforts to replicate the original design, resulting in a structure that serves both as a historical monument and a museum. The restoration of the Stoa of Attalos not only revitalized a significant piece of Athenian history but also demonstrated the effectiveness of combining modern restoration techniques with classical materials.