Atop most North American's to-do list is to see th...

Atop most North American's to-do list is to see the falls, and there's no better way than Hornblower. The trip across the boarder is quite worthwhile, as the decent and ascent are a bit harrowing on the American side (the Maiden of the Mist). Expect long lines, tourists who don't understand our social customs (there's a line FOR A REASON!), and uncharitable Canadians working the various posts. Nothing of the experience will eclipse the splendor of this Wonder of the Natural World.
The gift shop has some gems, too. :-)