According to this article, the Yediküle Fortress has recently been undergoing restoration work and archeological excavation. Turkey seems to be making it more of a tourist destination by adding an observation terrace and making a removable reproduction of a neighborhood that once existed within the structure. It also seems that watching the restoration process is expected to be part of the draw for tourists. The dungeons still have carved inscriptions from prisoners and apparently there is a well in which heads were thrown after executions. It will be interesting to see what they find during this restoration and excavation process in the coming years.