 Strasbourg Cathedral has been undergoing regular maintenance and restorations since its construction in the 13th century. To ensure the longevity of the structure, the cathedral's southeast stair turret was recently modeled using 3D technology and a building information model, BAM. This model will serve as a basis for future restoration efforts and provide a comprehensive understanding of the structure. This article was authored by M. Cole, V. Steiner, Eski Ma, and others. Thank you for watching.