Haemi Sanctuarium Internationale, Catholic martyrdom shrine in Haemi-myeon, Seosan, South Korea

The Haemi Sanctuarium Internationale is a Catholic shrine in Seosan dedicated to remembering religious victims. The grounds include various buildings, memorial areas, and a church space that provide visitors with insight into the spiritual significance of the place.

The persecution at Haemi ran from 1866 to 1872, when the Haemi garrison was charged with hunting down Catholics across its jurisdiction, which reached into Chungcheong and Pyeongtaek in Gyeonggi. Over 1,000 believers were executed or buried alive at the west gate of Haemi-eupseong and along the Haemi stream at Yeosutgol. In 1935 Father Barraux excavated some of the remains, and the shrine itself was completed on 17 June 2003.

Locals call the area Yeosutgol, from a misunderstanding: prayers to "Jesus Maria" sounded to villagers like "yeosu meori" (fox head), so they believed the martyrs were bewitched by a fox. The site was elevated to an international sanctuary, and in 2014 Pope Francis visited for the beatification of three Haemi martyrs.

The grounds can be explored in about one hour with pathways through various memorial areas. Visitors should wear comfortable shoes, as the terrain has different elevations and some paths are longer.

The hoya tree at the former prison site is not 600 years old; its branches were used to tie prisoners' bound hands, feet and hair during torture, and the tree still stands there today. In the 1950s, Haemi congregation members saved food to buy about 1,800 pyeong of this land and built a chapel hall, which the government demolished in 1982, leaving only a martyrdom monument.