There are about 500 waterfalls that are taller than Niagara Falls..
Niagara is famous for its WIDTH, not its height. Lots of people are taller than Danny DeVito, too.
Niagra falls isn't really known for being tall. Its more about water volume..
Only 25% to 50% percent of the water that could go over Niagara Falls does, the rest is diverted to hydro electric plants in Canada and the US. Left unchecked, the falls would erode north towards Lake Ontario.
...and I would walk 500 miles and I would walk 500 more. Just to be the guy who walked a 1000 miles to waterfall down with the flow.