š Cylindrical tower in northeastern Iran, dating to the mid-13th century. š Believed to be an incredibly sophisticated instrument of astronomical science, built by Nasir al-Din Tusi.
š Observe precise solar alignments during solstices and equinoxes.
šļø Determine seasons, leap years, and the start of Nowruz.
šļø Explore a unique example of Islamic Golden Age scientific architecture.
š Located on a hillock in northeastern Iran. Built by Nasir al-Din Tusi, a Persian polymath. Features 12 walls and 36 exterior columns.
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