Memory by Jica Simpas
The very first Roman Catholic church in Korea. If you're going just to see it, I suggest maybe visiting on a weekday. They close the church to sightseers during mass times on Sundays, which is practically almost ever hour. PSA—if you're late for the 9am English mass, you can't get in anymore, so be early!!! Or actually, there might be a way to go in but we didn't try hard enough.
74 Myeongdong-gil, Jeodong 1(il)-ga, Jung-gu, Seoul, South Korea
서울특별시 중구 명동길 74 (명동2가)