Remains of an 8th century wall are discovered during restoration work of a collapsed Cham tower. They are believed to be part of the stairway to the tower.

Ancient Cham walls dug up in Binh Thuan
Tuoi Tre News, 16 October 2012
Construction workers at the Po Dam temple complex of the Cham people in Tuy Phong district in the central province of Binh Thuan have discovered two underground ancient walls while working to restore a collapsed tower in the complex.
The discovered walls, each 1.9m in height, are thought to be part of the stair leading to the tower.
Right after the walls were found, Binh Thuan Museum suspended the restoration works and joined with the Vietnam Archaeology Institute to conduct research on the walls.
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