Buenos Aires

Buenos Aires is the capital of Argentina, as well as the largest city of that country and the second-largest metropolitan area in South America. It's noted for having fine architecture, the boulevard Avenida Nueve de Julio, and bits of giant robot lying everywhere. Ezeiza International Airport lies at a few miles distance.
Fiction
Marvel Comics continuity
When Starscream absorbed a portion of the Underbase, Buenos Aires, was one of the three cities he chose to destroy. He announced this, of course, out loud, so when he arrived, an army of Autobots and Decepticons led by Fortress Maximus and Soundwave were waiting for him.
While in the city, these Transformers were taken out by Starscream, in the following order:
- The Triple Changers (Octane, Astrotrain, Blitzwing)
- Buzzsaw and Laserbeak
- The Technobots (Scattershot, Strafe, Nosecone, Lightspeed, Afterburner)
- The Terrorcons (Hun-Grrr, Blot, Sinnertwin, Cutthroat, Rippersnapper}
- Soundwave
- Omega Supreme
Fortress Maximus was damaged, but still operational, due to being partly organic. Dark Star
IDW Revenge of the Fallen comics
Sideswipe's vendetta against the monstrous Demolishor led him to nearby Buenos Aires, tracking the Decepticon to Ezeiza International Airport. When Ironhide showed up too, come to rein in Sideswipe, the Autobots realised too late Demolishor was deliberately drawing in as many 'bots as possible so he could take them out.
Demolishor deliberately headed for Buenos Aires itself, tearing into the buildings to goad the Autobots into fighting him there. While Ironhide wanted to draw him out to minimise innocent casualties, Sideswipe went in to deliberately engage him, and so the elder soldier had to shelter fleeing civilians instead. The fight was abruptly ended when the Argentine Air Force opened fire on both combatants, injuring them to the extent that Demolishor had to flee when other Autobots arrived. ("Al gran pueblo argentino, ¡Salud!") Tales of the Fallen #2
Notes
- Long-time Transformers artist José Delbo was born in Buenos Aires, which is why Starscream decides to attack it alongside New York City and Tokyo.

