Carolina's - Phoenix, AZ

The restaurant was founded in 1968 by namesake Carolina Valenzuela, who still presides over the kitchen. The menu offers a traditional sampling of tacos, enchiladas, tostadas, tamales, burros and various combinations.

No one is bothered by Carolina's vague pricing. People just order what they want with the understanding that their tab, including a large, refillable drink, likely won't exceed $5.

The character of the neighborhood is etched on the building's cinder-block facade. The restaurant's skin has been pockmarked by bullets and its windows and doors outfitted with heavy metal security bars.