Ushuaia is the largest city in Argentine Tierra del Fuego island. It is 3,260 km south of Buenos Aires. It lays claim to the title "the southernmost city in the world". Puerto Williams, across the channel in Chile, also claims this title, but has only about 3,000 residents.
Ushuaia has been a missionary base, penal colony and naval base for the Argentine navy. Ushuaia is now a major tourist town, complete with casinos and nice restaurants, and commonly used as a base for hiking, winter sports and cruises to Antarctica.
The city has been transformed from a sleepy village to a lively tourist center, so you will not feel quite like you are at the end of the world. The scenic landscape around the city, with good outdoor sports including one of the southernmost winter sport resorts in the world complete with a view to the sea, make Ushuaia a place worth visiting.