Siroo, 4231-N Markham Street, Annandale, VA (formerly Sakura Express), 703-354-5488 (Metro Trip Planner – opens in new window) [Google]
This is the only Korean porridge place around. I recommend the chicken with ginseng, oyster with seaweed, and abalone, all in the form of porridges. Everyone should try these, even if you think you don’t want to go to a restaurant for porridge. They also serve Korean teas and they display and sell all sorts of non-traditional kimchees. This restaurant is a riot for the eye.
In terms of visuals, mood, atmosphere, and sheer novelty, this is one of the two or three best places on this whole list. The food is good too.