The square at the end of 18 de Julio Ave., with the latter being the main commercial artery of the city. On the last Saturday of September, all the museums and historical places of interest around the Plaza Independencia open for free to the public. There is also a large "Murga," or a traditional South American parade in which all the Uruguayan political parties take part. The event is known as El Día del Patrimonio, the Day of Heritage. On the middle of the square there is a statue of general José Artigas, and under it, his mauseoleum.