People also get around the city by walking, riding bikes, using motorcycles or cars, or taking taxis.
Argentina is a very large country with disperse population centers. This means that the big cities are pretty far apart. There are a couple of options for traveling from one city to another. The first is by taking an airplane, which is the fastest option but also the most expensive. The second is by train, which is much cheaper, but this method is also slower and connects to fewer cities. The third option is by micro, which is what Argentines call long distance buses. They are generally affordable and form a large network so you can travel almost anywhere in the country. Some of the bus trips last more than 24 hours! This may seem long, but on a lot of buses the seats recline so you can sleep, and the buses stop in many cool small towns to refuel that I would never have seen otherwise!
There are also some unique ways to travel in Argentina. From Buenos Aires, it is easy to go to the neighborhood of Puerto Madero, hop on a ferry, cross the Río de la Plata and be in Uruguay in a couple of hours. I took a day trip on a ferry to visit Colonia, a historic city in Uruguay. Now one of the national symbols of Argentina, the gauchos who lived here were skilled horsemen who herded the cattle (kind of like cowboys in the United States). If you don't have time to travel to the country, sometimes you can find celebrations of gauchos and people riding horseback at the Feria de Mataderos, a street festival. Finally, the city of Tigre is located on a river delta, so the easiest way to get around there is by water taxi and by boat!