When you walk through the ruins of the ancient city of Pergamon today or look at the 3D reconstruction of the ancient city hill, you inevitably ask yourself where the many building stones for the countless streets, houses and monumental buildings came from. Where the stones were quarried and by what routes were they transported to the city and up the steep city hill? Similar questions are also being asked in our current TransPergMicro project. In interdisciplinary groups we investigate the building economy between the Hellenistic and Roman Imperial periods.