The Artificial Lake Castle (Mongolian: Хиймэл нууран дахь цайз) was built in 1969, when the National Amusement Park was established in the centre of the Mongolian capital Ulaanbaatar.
It is surrounded by an artificial lake and fortress walls in an eastern-Asian style.
An Ethnographic Museum operated in the castle from its establishment until the mid-2000s.
The mock castle is part of an amusement complex together with the lake, and dock house.
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