Okay, so it's not exactly over the Falls, but still enough to make some people pee themselves. 

After three years of planning, a new attraction is set to open on the Canadian side of Niagara Falls this Friday - a 2,200 foot zip line.

Riders (who must be ages 7+) will pay $49.99 Canadian (about $38 American) to ride from the Hornblower boat tours gate, to the base of the gorge near the Horseshoe falls. There's also talks to have one on the American side. However, they've also been trying to get horseback riding and rock climbing on the American side, and nothing has come of it. Meanwhile, the Canadian side is beefing up their tourist attractions.

We just went to the Falls last October and LOVED it. I'm not afraid of heights; I'd give it a try!