The Tra Kieu archaeological site is located in Duy Son Commune, Duy Xuyen District, Quang Nam Province, approximately 50 km south of central Da Nang City.

In the late 19^th and early 20^th centuries, collectors discovered various stone sculptures of Champa culture in this area, including altar fragments, a linga, and decorative reliefs. Between 1927 and 1928, the École Française d’Extrême-Orient (EFEO) conducted excavations at Tra Kieu, unearthing numerous sculptures along with temple foundations and traces of city walls. Cross-referencing these archaeological discoveries with ancient historical gazetteers, several scholars concluded that Tra Kieu was once the capital of the Champa Kingdom, corresponding to the name Simhapura mentioned in several Cham inscriptions.

Most artifacts in the Tra Kieu collection are dated to around the 10^th–11^th centuries CE. However, certain pieces are dated by a majority of scholars to the 5^th–6^th centuries CE (such as the Yaksa, BTC 136 – 20.2), while others remain subject to differing dating opinions spanning up to 3 to 4 centuries apart (such as the Tra Kieu Altar, BTC 95 – 22.5). The artistic style of the Tra Kieu artifacts is generally characterized by fluidity, dynamism, and great diversity in attire, jewelry, and postures.