Chaharderakht mosque on the western side of the historical square of Chaharderakht is one of the most reliable mosques in the city of Birjand.
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In the western part of the Chaharderakht mosque the mosque of Ashura, which has changed over time, such that the eastern porch and part of its courtyard have been destroyed, and a new building has been built in two floors, which has undergone many changes in its historical and architectural origin.