This red-and-yellow cable-car contraption is the only one of its kind in existence. Spanish civil engineer Leonardo Torres Quevedo, who invented the world’s first computer, also designed this acrophobia-inducing apparatus, which whisks you on a 1,097m (3,600-ft.) jaunt between two points on the Canadian side of the falls. High above the Niagara Whirlpool, you’ll enjoy excellent views of the surrounding landscape.