With five ovens, seating for 800 and premises that stretch the depth of an entire city block, Güerrín is a palace to pizza. It"s located on Avenida Corrientes, a theatre district that"s the Argentine capital"s answer to Broadway or the West End. The restaurant has long been frequented by people from all walks of life, from glamorous thespians to hippy backpackers. Previous customers even include former presidents Raúl Alfonsín and Mauricio Macri, according to Nunes Aleixo. But no matter who"s eating it, porteño pizza is decidedly humble in origin.