Ushuaia, Argentina Ushuaia is the capital of the Argentine province of Tierra del Fuego, and has claim to the title of the world's southernmost city. Ushuaia is the gateway to the Tierra del Fuego National Park, and features the delightfully named Tren del Fin del Mundo (the “End of the World Train”) from Ushuaia. It also has penguins, many many penguins. I love penguins. I want a penguin. I’m not sure whether they let you take one home with you, but it may be worth a try. Apparently you stand a decent chance at spotting a killer whale in the harbour too. I reckon that I’d love to take a kayak out into the harbour and have a good look around. There is also a bit of skiing, a glacier, and if you’re really keen, you can nip down to Antarctica!