Though the Seven Wonders of the World list has been challenged and altered and has many incarnations, in 2007 Victoria Falls was placed on the Seven NATURAL Wonders of the World list, and as far as I can find, still holds that spot. Rightfully so. We had a mere hour to explore on the Zimbabwe side of the falls, and we only saw a small stretch in that hour. We had been warned by our guides to wear our rain gear, as due to the spray, it is always raining at the grounds around the falls.
One of the other women in our group had gone on a helicopter tour over Victoria Falls. Here is one of her photos from above to give an idea of the scale of the falls. Thanks Nancy B. for sharing!
Details: Victoria Falls can be viewed on either the Zambia or Zimbabwe side. I can’t seem to find an official website for either side, but both have charged entry, and there are tour operators who run helicopter tours over the falls.