Buenos Aires ( /ˈbweɪnəs ˈɛəriːz/ or /ˈaɪrɪs/,Spanish: [ˈbwenos ˈaiɾes]) is the capital and largest city of Argentina, and the second-largest metropolitan area in South America, after Greater Sao Paulo. It is located on the western shore of the estuary of the Río de la Plata, on the southeastern coast of the South American continent. Greater Buenos Aires conurbation, which also includes several Buenos Aires Province districts, constitutes the third-largest conurbation in Latin America, with a population of around thirteen million.

The city of Buenos Aires is not a part of Buenos Aires Province, nor is it the Province's capital, but an autonomous district. In 1880, after decades of political infighting, Buenos Aires was federalised and removed from Buenos Aires Province. The city limits were enlarged to include the towns of Belgrano and Flores (both are currently neighborhoods of the city). The 1994 constitutional amendment granted the city autonomy, hence its formal name: Ciudad Autónoma de Buenos Aires (Autonomous City of Buenos Aires). Its citizens first elected a Chief of Government (i.e. Mayor) in 1996; before, the Mayor was directly appointed by the President of the Republic.

Natalie Tyler Tran (born 24 July 1986) is a video blogger on YouTube from Sydney, Australia, using the nickname communitychannel. Tran's videos of humorous monologues and skits acted out by herself have made her the most subscribed Australian YouTuber.

Tran's mother and father, both refugees who left Vietnam to go to Australia in 1981, were originally a lawyer and literature professor respectively, but became a postal worker and a public school teacher in Australia. Tran grew up in Sydney and, after high school, she studied teaching for two years before switching to a digital media program at the University of New South Wales.

As of January 2012^[update], Tran has 287 videos available on her YouTube channel and is the most-subscribed user of all time in Australia, the 26th most subscribed of all time on YouTube, and the 7th-most subscribed director worldwide. She also manages the 58th most viewed channel on YouTube of all time. Tran was the first runner up in Michael Buckley's Miss YouTube contest. She created her first video on 12 September 2006.

Ana Botella Serrano (born 23 July 1954 in Madrid) is a Spanish politician belonging to the Spanish People's Party and mayor of Madrid since December 2011. She has been on the Madrid City Council since 2003, where she has been Second Lieutenant Mayor and headed the Departments of Social Services (2003-2007) and of the Environment (2007-2011)

In December 27 2011 was elected Mayor of Madrid, after the resignation of Alberto Ruiz-Gallardón, due to the latter being designated Minister of Justice. She is the first female Mayor of the city. She has been criticised for failure to tackle Madrid's air pollution which frequently exceeds permitted levels in the city.

She is the wife of the former Spanish prime minister José María Aznar.

Ana Botella and José María Aznar married in 1977, and have three children: José María Aznar Botella, Ana Aznar Botella, and Alonso Aznar Botella. Their daughter married on 5 September 2002 Alejandro Tarik Agag Longo in a lavish ceremony at El Escorial. Ana Botella has four grandchildren, Alejandro (born 4 June 2004 in Madrid), Rodrigo (born 13 December 2005 in Madrid), Pelayo (born 20 January 2008 in Madrid) and Alonso (born 22 December 2010 in Madrid) Agag Aznar.