Construction of Sefa in Persepolis + Picture

Creating a flat surface to build palaces on it was one of the first construction steps that Darius started. In this way, first they leveled a section measuring 450 x 300 meters. For this purpose, they cut the protrusions and filled the depressions. This row is 18 meters above the level of the plain in the central part. The inner parts of Sefeh are natural mountain stones, and the outer parts that are visible are shaped by cut stones. South of Sefeh, there is an inscription of Darius, in which information is given about how these buildings were built.. The first step that has been taken on Sefa is the construction of underground waterways to guide the flood water flowing from the mountain, which you can see in the form of parts of it.. Sefa water is discharged towards the south.

Source: www.livius.com