"This waterfront Old Town bar is a fun, convivial spot for lots of tapas, Spanish wine, and stone fruit sangrias. Situated atop a floating dock on the Potomac, Barca takes notes from the Catalonia region on the Mediterranean coast of Spain and its beach bars known as chiringuitos. Opt for Catalan-style mussels, pan con tomate, and octopus salad jazzed up with Basque peppers. Weekday happy hour (4:30-6:30 p.m.) features food and drink for $7 or less." - Tierney Plumb