Kate Upton is living life on the edge, literally. The 23-year-old model visited Toronto this past weekend to support her pro baseballer beau, Justin Verlander, while the Detroit Tigers played against the Blue Jays for a three-game series. During their stay, their pair played tourists and embarked on the "extreme urban adventure" the city has to offer -- the CN Tower Edgewalk. Both Upton and Verlander slipped into orange jumpsuits and harnesses before walking along the edge of the famous tower 1,168 feet above ground. And by the look of it, the couple wasn't afraid -- they even managed to...