Haemieupseong
Haemieupseong is a Joseon-era Korean fortress in what is now Haemi-eup, South Chungcheong Province, South Korea. Haemieupseong was built between 1417 and 1421 during the Joseon period. In January 1963, it was listed as South Korea's Historical Site No. 116 and was renovated in 1973. The castle was the background of the Donghak Rebellion in 1864. This fortress, originally built to protect against Japanese pirates, was a historical site where thousands of Catholics were executed during the French Invasion in 1866.