|Imperial Citadel of Thang Long|
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The Imperial Citadel of Thăng Long is located in the centre of Hanoi, Vietnam. It is also known as Hanoi Citadel.
The royal palaces and most of the structures in Thăng Long were in varying states of disrepair by the late 19th century with the upheaval of the French conquest of Hanoi. By the 20th century many of the remaining structures were torn down. Only in the 21st century are the ruin foundations of Thăng Long Imperial City systematically excavated. - in: wikipedia