First, I must tell you about the Amazing Race. The Amazing Race is an American reality TV show where teams travel around the world for a $1 million dollar prize. If you would like more information about the show, visit their website.
The placemark you are questioning is the fourth pit-stop around the world. I am correct about the city of the placemark (Buenos Aires, Argentina), but I am not correct about the exact location of the placemark. The correct pit-stop is at the La Martina Polo Ranch. I thought that was it, but I am wrong. If you know where La Martina Polo Ranch is, please tell me.
If you have any more questions about this, please ask me. I want my posts to be as accurate as they can be. Thanks!