Ushuaia is the southernmost continental place in the world. It is the usual departure point to Antarctica. In Ushuaia you may see many different types of flora and fauna and is the only place on Earth (besides Antarctica) where you can experience Southern Lights (Aurora australis). You can take there a trip to the local National Park in the end of the world and a boat trip from which you can see wales, seals and penguins.
See This Spot