Mosi-oa-Tunya National Park Mosi-oa-Tunya National Park Mosi-oa-Tunya National Park (Sotho: "Musi oa Thunya" [Mosi wa Tunya] ""The Smoke Which Thunders""), is an UNESCO World Heritage site that is home to one half of the Mosi-oa-Tunya "— 'The Smoke Which Thunders' —" known worldwide as Victoria Falls on the Zambezi River. The river forms the border between Zambia and Zimbabwe, so the falls are shared by the two countries, and the park is 'twin' to the Victoria Falls National Park on the Zimbabwean side. ‘Mosi-oa-Tunya’ comes from the Kololo or Lozi language and the name is now used throughout Zambia, and in parts of
Victoria Falls Bridge instructing the engineers to "build the bridge across the Zambezi where the trains, as they pass, will catch the spray of the Falls". It was designed by George Andrew Hobson of consultants Sir Douglas Fox and Partners, assisted by the stress calculations of Ralph Freeman, who was later the principal designer of the Sydney Harbour Bridge. The main central arch is a parabolic curve. <ref name="http://bestbridge.net/Africa_en/victoria-falls-bridge.html">Best Bridge Africa Victoria Falls Bridge: para, accessdate: March 2, 2017</ref> The bridge was prefabricated in England by the Cleveland Bridge & Engineering Company, before being shipped to the Mozambique port of Beira and then