Argentina's Italian bloodline Buenos Aires, Argentina, is the most-visited city in all of South America. And no visit is complete without a trip to La Boca, a colorful neighborhood that in the late 19th and early 20th centuries experienced a massive wave of Italian immigration. Today an estimated 62% of Argentinians claim some Italian heritage. Correspondent Conor Knighton gets a taste of Buenos Aires' best pizza, gelato and Italian liqueurs, and surveys the imprint that Italian immigrants had on Argentina's art and culture.