RE: Like Basque?
We've got a good place in DC area call La Tasca (2900 Wilson Blvd. Arlington, VA)
Very good. My wife and I loved it. Atmosphere and service is great also, with the inside being and open three stories high with a spiral staircase, okra-colored walls, and an array of hundreds of plates, paintings, hand-painted tiles, and wrought-iron objects on the walls.
Metro accessible too.
Since it's owned by a UK company, I doubt it's authenticity, but I enjoyed it none the less.