The Eternal Golden Castle, alternatively but less well known as Erkunshen Battery, is a defensive castle in Anping District, Tainan, Taiwan.
Wikipedia https://en.wikipedia.org/wiki/Eternal_Golden_Castle
Address Guangzhou Rd, Anping District, Tainan City, Taiwan 708
Coordinates 22°59'16.471" N 120°9'31.993" E