Geumgangsan Gamjatang Bangi serves gamjatang and bone hangover soup near Olympic Park in Bangi-dong, Seoul. The gamjatang comes in large, medium, and small pot sizes, with a clear herbal broth holding potatoes, vegetables, and glass noodles. The dining room is spacious and tidy, and after the gamjatang you can order fried rice made with chopped kimchi. Prices run higher than at other gamjatang restaurants.