Buenos Aires bid to host the 1936 , 1956 , 1968 , and 2004 Summer Olympics , but lost to Berlin , Melbourne , Mexico City and Athens respectively .
Buenos Aires could potentially be the second city on the continent to stage the event .
city   bid to host the 1936 , 1956 , 1968 , and 2004 Summer Olympics , but lost to Berlin , Melbourne , Mexico City and Athens respectively .
Buenos Aires could potentially be the second city on the continent to stage the event .