In São Paulo's posh Jardins neighborhood, Alex Atala, Brazil’s most celebrated culinary star (D.O.M., Dalva e Dito), has paired up with club impresario Facundo Guerra to deliver the ultimate late-night dining menu at Riviera Bar. In the historic lounge, live jazz and beautiful people set the scene for dishes like Atala’s definitive steak parmigiana with fries, or a hearty roast-beef sandwich.