Cham towers of Po Nagar were built between the 7th and 12th centuries, although the site was used for worship as early as the 2nd century AD. To this day Cham, ethnic Chinese and Vietnamese Buddhists come to Po Nagar to pray and make offerings, according to their respective traditions. This site has a continuing religious significance, so be sure to remove your shoes before entering.

The towers serve as the Holy See, honouring Yang Ino Po Nagar, the goddess of the Dua (Liu) clan, which ruled over the southern part of the Cham kingdom covering Kauthara and Pan Duranga (present day Khanh Hoa and Thuan Hai provinces). The original wooden structure was razed to the ground by attacking Javanese in AD 774 but was replaced by a stone-and-brick temple (the first of its kind) in 784. There are inscribed stone slabs scattered throughout the complex, most of which relate to history or religion, and provide insight into the spiritual life and social structure of the Cham. Originally the complex covered an area of 500 sq metres and there were seven or eight towers, four of which remain. All of the temples face east, as did the original entrance to the complex, which is to the right as you ascend the hillock. In centuries past, a person coming to pray passed through the pillared meditation hall, 10 pillars of which can still be seen, before proceeding up the steep staircase.