Victoria Falls is a waterfall on the Zambezi River on the border between Zambia and Zimbabwe and is one of the world's largest waterfalls, with a width of 1708 m (5604 ft). Long known to Africans and also known to some European geographers before the 19th century, Scottish missionary David Livingstone identified the falls in 1855, providing the English colonial name of Victoria falls after Queen Victoria. 19th century lithograph.