From Yahoo! News:
Niagara Falls is a quintessentially North American phenomenon. Situated at the border between America and Canada, the roaring force of nature has captured the imagination of those who visit for centuries. Actually a collection of three falls, they are dramatic but can bring the reckless side out of tourists and daredevils.
The latest victim went over Sunday, when a 19-year-old student visiting from Toronto lost her footing while climbing on a safety railing, plunged to the water below, then was swept over the falls. Following is a timeline of some of the other tragic events linked to the famous tourist destination.