There are many christians in South Korea and hence there are many churches. Here are some of the churches that have an IDN for their website.
Yonghonam Church
http://용호남교회.한국
Gamman Church
http://감만교회.한국
Sogeumbat Church
http://소금밭교회.한국
Pure Gold Lighthouse Candlestick Church (literal translation)
http://순금등대촛대교회.한국
Thank God Church
http://감사교회.한국
Dadream Church
http://다드림.한국
교회 = church
André Schappo