Just before leaving Baku, I managed to visit Mardakan Square Tower (pictured here) and Ramana Tower. Nardaran Tower still remained closed to tourists (July 2022), much to my disappointment. 

In terms of OUV, the selection of properties exhibit the importance of safekeeping the Caspian shore while uniting Azerbaijan with the rest of the Middle East and Europe.

A cause of concern is the private properties (houses and villas) built somewhat close to the tower gates.