* Longitude Lines Converge at the Poles: Longitude lines run from the North Pole to the South Pole. They are all parallel to each other and meet at the poles.
* Antarctica is at the South Pole: Antarctica is located around the South Pole.
* No Continents at the South Pole: The only landmass at the South Pole is Antarctica itself.
Therefore, if you start at the South Pole (Antarctica) and travel along a longitude line, you'll simply be traveling northwards through the Southern Ocean, potentially reaching other points in Antarctica, but not reaching any other continent.
