Buenos Aires (i.e. mayor) in 1996; previously, the mayor was directly appointed by the President of the Republic. Buenos Aires is considered an 'alpha city' by the study GaWC5. Buenos Aires' quality of life was ranked 91st in the world, being one of the best in Latin America in 2018. It is the most visited city in South America, and the second-most visited city of Latin America (behind Mexico City). Buenos Aires is a top tourist destination, and is known for its preserved Eclectic European architecture and rich cultural life. Buenos Aires held the 1st Pan American Games in 1951 as well
Buenos Aires Underground on the Buenos Aires Underground became particularly prevalent in the late 2000s and early 2010s, and by 2013, four out of every five cars on the network had some degree of graffiti. By January 2015, all the painted cars had been cleaned by night-time cleaning teams using a product specially developed for SBASE which allowed the removal of graffiti without damaging the livery of the cars. Cleaning the 410 vandalised cars had cost the City of Buenos Aires AR$ 10.25 million, while a coat of anti-graffiti paint has been applied to the cars to make future cleaning easier using alcohol.