This is one of the open air gun emplacements of East Weisheng Fort, on Wanshang Mountain. It is part of the collective forts that go to make up the Weiyuan Fort on Weiyuan Island at the east of Humen port. Humen, a town within the city of Dongguan, Guangdong, China. The fort is part of the second tier defence of Humen Fort and was built in 1815. It was lost in the great naval battle of Humen and damaged by the British forces. By 1843 it was repaired but was again damaged by British forces in 1856. Down between the trees can be seen the Sea Battle Museum which incoporates the Opium Wars Museum. The First Opium Wars (1839 to 1842) which were started as a result of Lin Zexu siezing and destroying many tons of Opium on the nearby beach at Humen.The Second Opium War was 1856 to 1860.