Lukas Irmler and Reinhard Kleindl brave heights as they walk across a wire at Victoria Falls in Zimbabwe. It's a real sport, known as slacklining. Produced by Devan Joseph. Video courtesy of ...

You're guaranteed sightings of these safari superstars plus zebra, giraffe, antelope and more in the 56,000-hectare Victoria Falls and Zambezi National Parks surrounding the waterfall's Zimbabwe ...