* Northernmost: The North Pole (90° N latitude). It's a point located in the Arctic Ocean, where all lines of longitude converge.
* Southernmost: The South Pole (90° S latitude). This is a point located on the continent of Antarctica.
It's important to note that:
* The North Pole is not part of any continent. It is a point in the Arctic Ocean, which is covered in ice for most of the year.
* The South Pole is located on land (Antarctica).