Fin del Mundo Lighthouse, Historic lighthouse in Staten Island, Argentina.

The San Juan de Salvamento Lighthouse stands on a rocky promontory at Punta Lasserre, 70 meters above sea level on the northeastern tip of Staten Island. It is a white-painted wooden building with 16 sides, 6.10 meters tall including its zinc ball, and 9 meters in diameter. Its lantern, behind Fresnel lenses, once shone from oil lamps.

Argentina built the structure in 1884 as the country's first beacon to help ships navigate the dangerous passages south of Tierra del Fuego. It remained operational until 1902, when a newer installation took over and the old tower was abandoned.

Jules Verne drew inspiration from this tower for his novel about a remote beacon, published in 1905. The book's title gave the structure its popular name and continues to make it a literary landmark in the Magellan region.

Reachable only by boat from Ushuaia, visiting requires permission from Argentine naval authorities and depends heavily on weather conditions. Because of its location within a protected area, access is limited and usually arranged through organized tours.

The rebuilt lighthouse is a working aid to navigation: since its 1998 restoration it runs on solar panels and flashes every 15 seconds, with a beam reaching 26 km over a 93° angle. Its free access also lets it serve as a shelter for shipwreck survivors, with space to sleep, eat and keep warm.