The International Square building in downtown Washington is a hive of activity. At street level, there are retail shops and restaurants. Take the escalator down a floor and you find yourself in a food court. Burrito Brothers is nestled among other fast food-type restaurants for easy dining. The menu features all Mexican standard fare: Burritos, fajitas, quesadillas, hardshell tacos, taco salads and nachos. The food is really affordable for downtown dining -- most burritos are $4-$5 for a regular size. Super sized burritos (with cheese) will set you back $5-$6.

See more: Downtown restaurants, Foggy Bottom/ GWU / West End restaurants, Mexican restaurants