The tower was built in the late twelfth century at Tay Binh Commune, Tay Son district, 50km away from Quy Nhon city. This is the golden era of Champa culture. This architecture cluster consists of three towers: the one in the middle is 40 meters high while the two on the side are 38 meters high. The bodies of the towers are of made of brick while the corners are assembled from large elaborately carved stones. Duong Long tower is not only large by its height (i.e. the highest of all remaining Cham Towers in Vietnam) but also famous for its unique architecture, especially the patterns, textures carved directly on massive stones right on top of the tower by find sculptors. The carvings are gorgeous and delicately elegant at the same time, while the carved animals and patterns are lively yet mystical. Duong Long Tower is considered one of the most beautiful Cham Towers in Vietnam. The tower is recognized by the Ministry of Culture and Information as Architectural and Art vestige in 1980 and ranked by the Prime Minister as a special national monument on 23/12/2015.