Ancient underground freezer unearthed at South Korean castle

The 1,400-year-old'bingo' is the oldest known facility of its kind. Breakthroughs, discoveries, and DIY tips sent every weekday. Archaeologists have discovered South Korea's earliest known ice storage chamber at the site of one of the nation's most historically significant royal castles. At over 1,400 years old, the underground facility offers an unprecedented look into feudal Korean culture's architectural complexities and advancements. Researchers uncovered the ice storage bunker while conducting the seventeenth excavation survey of Busosanseong Fortress located about 90 miles south of Seoul in South Chungcheong Province.