Victoria Falls

"At more than 5,500 feet (1,700 meters) wide and 355 feet (108 m) high, Victoria Falls is the largest curtain of falling water in the world. It is so large that at times its spray is visible 30 miles (50 kilometers) away. Discover more in Victoria Falls, one of the titles in the Natural Wonders of the World series"--From the publisher's web site.