What are the Northernmost and Southernmost Countries on Earth?

What are the Northernmost and Southernmost Countries on Earth?

Day #6 (Friday) of this week's geography questions... as requested by G@G members.

How well do you know geography?

Today, let's ask a two-part question "What country extends farthest North? What country extends farthest South?"

Please don't cheat by looking it up. Make your best guess.

Answer will be given tomorrow (Saturday).

Updates
+1 y
Thanks to all who participated...

There seems to be some legitimate disagreements about this. The answer that I have, from the sources that I typically use, is:

Northernmost - Denmark (Greenland is most north and is part of Denmark; some sources say Greenland is a self-governed country)
Southernmost - Chile just beats out Argentina at the southern tip of South America
What are the Northernmost and Southernmost Countries on Earth?
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