10 Mount Thor Baffin Island Canada.jpg

Photo Modified: Wikimedia Commons/ CC BY-SA 3.0

Canada's Mount Thor in in Auyuittuq National Park is the world's steepest and tallest cliff with a record vertical drop of 4,101 feet. BASE jumping is illegal, as rescue teams can’t reach people in time, but that hasn’t stopped adrenaline-seekers from trying to conquer the peak. The jump is also very technical as you can see in this video. You are very close to hitting the cliffs and rocks.