A bar counter shaped like an inverted ziggurat sits at the centre of this restaurant in Mexico City, designed by local architecture studio RA! Tana is a tapas spot located in the city’s wealthy Polanco neighbourhood, within a compact and intimate space facing Parque Lincoln. The Tana restaurant is organized around a central concrete bar RA! gutted the 65-square-metre unit to make way for its cave-like concept, achieved by applying textured plaster and concrete across the four-metre-high walls. “The intervention began by demolishing the superimposed finishes of the old premises, in order to discover the structure and the materials that…