6. First man climbed the Niagara
Can you spot the climber? Well, he is Will Gadd, the world-champion ice climber from Canada. He had climbed a number of extremely dangerous icebergs, fjords, and frozen falls, but Niagara for sure was one of his life experiences, with a creepy combination of water-ice, snow, slush and spray ice. As he told later in an interview, the most staggering factor was the extreme physical vibration the Falls issues. “You feel it in your intestines” – he added.