Dànánmén 大南門, also known as Níngnánmén 寧南門, is one of two great gates remaining in Tainan 台南, the most historic city in Taiwan. Built in 1725, it has been renovated several times but maintains its classical charm. Nowadays it can be found in a gorgeous park just south of the Confucius Temple on Nánmén Road 大南路. The gate itself is surrounded by a secondary fortification, a barbican or wèngchéng 瓮城, which provides additional defensive capabilities. As usual, Tainan City Guide has an excellent write-up about this historic landmark.