There is a lot of information regarding the existence of underground ways constructed in the medieval cities and towers of Azerbaijan. While constructing protective bastions in Baku city the underground ways were constructed together with powerful towers as an integral part of the fortress wall in order to store the firmness and power of the walls and simplify the protection system. Namely for this purpose, an underground way was constructed in the internal part of the northern fortress walls lasting till the Gosha Gala gates, envisaged for the comfortable movement of soldiers. Underground wayd dates back to the XII century.
The main responsibilities of Administration of the State Historical Architectural Reserve Icherisehehr are to preserve the architectural monuments,explore and propogate cultural heritage to future generations as well as to develop tourism sector. The Reserve Department, following the protection regime, determines the recreational area, as well as conducts archeological rescue operations. With an aim of investigate the history of ancient Baku, rescuing archaeological exploration is carried out to explore monuments that have been left undetermined and have not been investigated yet. In recent years, significant works have been done in the tourism infrastructure of Icherisheher. Two centuries ago, the ancient city of Baku, called Icheri Sheher, has now become a modern tourist center. Architectural monuments and historical sites which were investigated by the Reserve Department are conserved and used for tourism purposes. Historical-architectural monuments discovered as a result of archaeological excavations in the area can be mentioned as an example.