About the book: 1991 / Ancient sunken and now sinking cities are described. Various hypotheses explaining the reasons for the death of ancient cities of the Mediterranean, Black Sea and Caspian regions are considered. Information is given about floods, groundwater inundation, and engineering protection of Venice, the Netherlands, Leningrad and other cities and territories. Ed. The first one was published in 1978 by the Nauka publishing house. For a wide range of readers.