article deals with the virtual restitution of a 13 m high column standing initially inside the Great Hypostyle Hall of the Pharaonic temple at Karnak in Egypt. A dozen of the original 134 columns are incomplete and three of them have entirely disappeared. Hundreds of loose drums belonging to those columns are scattered all over the archaeological site; we have been able to identify most of them, making it now possible to rebuild the missing columns. Since these blocks are heavy and very difficult to move around, the decision was made to reconstruct the columns in a virtual environment. In order to do so, we have created a 3D model of the blocks by means of photogrammetric processing, with the help of specific tools that we have developed for this task.