Victoria Falls: The World's Largest Sheet of Falling Water, Renamed by a Man Who Didn't Find It

Victoria Falls sits on the Zambezi River, on the border between Zambia and Zimbabwe, where the river drops 108 meters into a narrow gorge along a curtain of water 1,708 meters wide. It is neither the tallest waterfall in the world, that’s Venezuela’s Angel Falls at 979 meters, nor the one that moves the most water, a title held by the Democratic Republic of Congo’s Inga Falls. But taken as height multiplied by width together, the standard used to measure a “curtain” of falling water rather than a single narrow drop, Victoria Falls produces the largest sheet of falling water on Earth, a distinction UNESCO’s official listing formally credits it with.

The falls already had a name centuries before any European saw them. Communities along the Zambezi called the site Mosi-oa-Tunya in Lozi, “the smoke that thunders,” a reference to the spray cloud visible for miles and the roar audible well before the falls come into view; Tonga speakers knew it as Shungu Namutitima, and other neighboring peoples had their own names as well. Scottish missionary and explorer David Livingstone reached the falls in November 1855, guided there by local Kololo chief Sekeletu and his men, and became the first European to document the site, which he then renamed Victoria Falls in honor of the reigning British monarch. Livingstone’s own journals describe being told about the falls and led to them, an account at odds with the “discovery” framing that later attached to his visit and that still shapes how the site is popularly described.

The Zambezi’s flow over the falls varies dramatically by season, from a relative trickle in the November dry-season low to a peak average flow of roughly 1,088 cubic meters per second, with the heaviest flood months pushing considerably higher and generating spray columns that can rise 400 meters into the air, visible from as far as 30 miles away under the right conditions. The gorge itself is the product of a geological process still ongoing: the Zambezi has cut through a series of parallel basalt fault lines over hundreds of thousands of years, and the falls have progressively retreated upstream as each successive fault line was breached, leaving a zigzagging series of abandoned former gorges downstream that mark the falls’ earlier positions.

UNESCO inscribed the site as a World Heritage property in 1989, listing it under its dual name, Mosi-oa-Tunya / Victoria Falls, an acknowledgment that both names carry historical legitimacy rather than one superseding the other. Zambia’s side of the site is formally named Mosi-oa-Tunya National Park, while Zimbabwe’s side retains Victoria Falls as the official park name, a split that reflects the same underlying tension between the precolonial name and the colonial-era one that persists in how the falls are marketed and discussed internationally.