Effie's in on Pine Street between 12th and 13th. It's a BYOB with a great courtyard to sit in if the weather is nice. The food is authentic Greek and very good. I highly recommend the sampler appetizer that's sometimes a special, it features spanakopita, hummus, kalamata olives, and dolmades. The swordfish kabob is also very good. Don't forget to bring a nice bottle of wine.