Radkan tower or Mil-e Radkan is a tower and a historical building which is located 74 km north of Mashhad. This tower belongs to the seventh century. Designed by Nasir ad-Din al-Tusi, it helped residents determine the beginning of the four seasons, leap years and Nowruz.
Marefat Pardis Toos and Iran Sebt Tour Operator spent the night in one of Radkan eco lodges and had local cuisine. Mr. Kazemian explained the history of his eco-lodge. The next morning, the team visited the tower and the historic area of Radkan.