Namsan-Og

Namsanok is a Korean restaurant in Seoul that serves sundae guk, seolleongtang, yukgaejang, and gomtang. It sits about a five-minute walk from Samsung Station Exit 1. The sundae guk has a deep, rich broth and generous ingredients, and the gopchang jeongol comes with udon noodles by default. It is open 24 hours, has large seating areas on the first floor and in the basement, and in some cases food has arrived within five minutes of ordering.