The Đền thờ vua An Dương Vương (Temple of King An Dương Vương) is a significant historical and cultural site located in Cổ Loa, Đông Anh District, Hanoi, Vietnam. This temple is dedicated to An Dương Vương, the founder of the Âu Lạc Kingdom and the builder of the legendary Cổ Loa Citadel.
Di tích Thành Cổ Loa (Co Loa Citadel) is a citadel built near Phong Khe, Dong Anh district, Hanoi, during the end of the Hong Bang Dynasty (about 257 BCE). The fortress is a spiral-shaped complex of the then new capital.