La Calle Taqueria y Carnitas

Denver
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This Southwest spot is pretty bare-bones beyond that of its bright orange hue, but don’t let the hole-in-the-wall ambience fool you: La Calle is the go-to spot for Mexican street food in the Denver area. It’s a veritable taco mecca: there’s fried tripe and lengua (cow tongue) for those with adventurous appetites, but the staples here -- carne asada, chorizo, al pastor -- are just as solid, especially when paired with any of the homemade salsas. The price point is insanely low given the high quality, so you can sample any and all of them to find your favorite without burning a hole in your pocket.