Going over Niagara Falls with or without a barrel is a bad idea and you shouldn't do it. It’s safer, easier and a lot more fun to cross over the bridge between Niagara Falls, New York and Niagara Falls, Ontario - or, if you’re a daredevil, to cross the falls themselves on a tightrope, as Nik Wallenda did in 2012. Plus: the story of the time 50 years ago that Niagara Falls stopped falling.