6. Mocona Falls, Argentina/Brazil, South America – 6,775 feet wide.
These amazing falls run nearly parallel, instead of perpendicular, to the Uruguay River on the border between Argentina and Brazil. Also known as the Yumuca Falls, Mocona means “to swallow everything,” which this waterfall apparently does. During some parts of the year, the entire waterfall almost disappears completely due to the fullness of the river.
