Buenos Aires is the capital and largest city of the Argentine Republic. Greater Buenos Aires, which includes the adjacent partidos or municipalities, constitutes the third largest conurbation in Latin America, with around 13 million inhabitants.

Buenos Aires is the financial, industrial, commercial, and cultural hub of Argentina. Its port is one of the busiest in South America. Tax collection related to it has caused many political problems in the past; navigable rivers by way of the Rio de la Plata connect the port to north-east Argentina, Brazil, Uruguay and Paraguay. As a result, it serves as the distribution hub for a vast area of the south-eastern region of the South American continent.

To the west of Buenos Aires is the Pampa Húmeda, the most productive agricultural region of Argentina (as opposed to the dry southern Pampa, mostly used for cattle farming). Meat, dairy, grain, tobacco, wool and hide products are processed or manufactured in the Buenos Aires area. Other leading industries are automobile manufacturing, oil refining, metalworking, machine building, and the production of textiles, chemicals, clothing, and beverages.

Strongly influenced by European culture, Buenos Aires is sometimes referred to as the "Paris of South America ".

Buenos Aires is the site of the Teatro Colón, one of the world's greatest opera houses. It is closed for renovations until at least 2010. There are several symphony orchestras and choral societies. The city has numerous museums related to history, fine arts, modern arts, decorative arts, popular arts, sacred art, arts and crafts, theatre and popular music, as well as the preserved homes of noted art collectors, writers, composers and artists. It harbours many public libraries and cultural associations as well as the largest concentration of active theatres in Latin America. It has a world-famous zoo and Botanical Garden, a large number of landscaped parks and squares, as well as churches and places of worship of many denominations, many of which are architecturally noteworthy

According to the World Travel & Tourism Council, tourism has been growing in the Argentine capital since 2002. In a survey by the travel and tourism publication Travel + Leisure Magazine, travelers voted Buenos Aires the second most desirable city to visit after Florence, Italy. Additionally, Buenos Aires, is often called the Paris of South America.

The city offers a variety of cultural activities. Visitors may choose to visit a tango show, an estancia in the Province of Buenos Aires, or enjoy the traditional asado. New tourist circuits have recently evolved, devoted to famous Argentines such as Carlos Gardel, Eva Perón or Jorge Luis Borges. Due to the favourable exchange rate, its shopping centres such as Alto Palermo, Paseo Alcorta, Patio Bullrich, Abasto de Buenos Aires and Galerías Pacífico are frequently visited by tourists.

San Telmo is a frequently visited area south of city, with its cobblestoned streets and buildings from the colonial era that attest to its long history. There are churches, museums, antique shops and "Antique Fairs" ('Ferias de Antigüedades') in historic Dorrego Square, where the streets on weekends are filled with performers such as tango dancers. The city also plays host to musical festivals, the largest of which is Quilmes Rock.

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