The tower’s construction is often attributed to Khwaja Nasir al-Din Tusi, although there is some debate among scholars regarding its origins. Some suggest it may have been built during the Daylamite period. The tower’s construction date is a subject of contention as well, with some sources suggesting it was built in 680 BCE.
The tower is thought to have had astronomical significance. Some believe it was used for astronomical observations, while others argue it may have served as a tomb due to its resemblance to Daylamite era tombs.
The precision in the placement of doors and vents, as well as the presence of Kufi and Pahlavi inscriptions, adds to the intrigue surrounding the tower’s purpose and history.
While the exact function of Radkan Tower remains a mystery, its unique architectural features and potential astronomical significance continue to fascinate historians and visitors alike, offering a glimpse into the rich history and scientific advancements of its era.