Semnan province office for research and study of outsider Iranians

Chehel-Dokhtar dome - Damghan
This tower (dome) is located at the shahid Fallahi street in Damghan .This tower is one of monument from saljoghi era which have been built in order of Abu-Shoja in 446 lunar hejira with bricks.
There is an inscription with kufic write hand and beautiful bricks.Another inscription with kufic write hand on the top of the good gate in this tower can be seen.