Head of a Greco-Bactrian ruler with diadem, Temple of the Oxus, Takht-i Sangin, 3rd–2nd century BCE.
Takht-i Sangin was a major Graeco-Bactrian settlement and religious centre located at the confluence of the Amu Darya and Panj River in present-day Tajikistan. Occupied mainly during the 3rd–2nd centuries BCE, the fortified site likely held political and religious importance, drawing resources from across Bactria. At its centre stood the Temple of the Oxus, built around 300 BCE, probably under Seleukid Empire patronage. The temple combined Greek and Iranian architectural features and may have served as the main sanctuary of the river god Oxus. Thousands of votive offerings—especially weapons, royal portraits, and luxury objects—were discovered there, reflecting the site's wealth and cultural diversity. The settlement was sacked in the 130s BCE, likely by the Kushans, after which most of the city was abandoned, though the temple remained in use until the 3rd century CE. The site is also considered a possible original source of the Oxus Treasure, now held by the British Museum and Victoria and Albert Museum.