Darzab, IranDarzab is a village in Bajestan Rural District, in the Central District of Bajestan County, Razavi Khorasan province, Iran. At the 2006 census, its population was 347, in 102 families.Darzab Yellow CastleDarzab Yellow Castle which dates back to the Safavid period is located in the village of Darzab in the city of Bajestan. The castle was registered as one of the national monuments of Iran on December 1, 2001, with the registration number 4578.