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Wonder
Cổ Loa Citadel
In short
The oldest fortification in Hanoi, fortified citadel 20 km north from the center of the city. Development of this fortress started around 400 – 350 BC, outer walls have a perimeter of 8 km. Remaining ramparts are up to 12 m high. Cổ Loa town is located inside the ramparts up to this day.
46.3%
GPS coordinates
21.1165 N 105.8726 E
City walls, Fortresses and forts
Map of the site
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