Buenos Aires, Argentina is the capital and largest city of Argentina. It is located on the western shore of the estuary of the Río de la Plata, on the South American continent's southeastern coast. The city is known for its European-style architecture and rich cultural life. It is also home to the Teatro Colón, one of the world's great opera houses. Buenos Aires is a major tourist destination, with attractions such as the Recoleta Cemetery, the Obelisco, and the Plaza de Mayo.