The Falls, 1840
The image above was taken by "an English scientist named Hugh Lee Pattinson, who traveled across the state into Canada with a daguerreotype camera -- then a technology only a few years old"— Historic first photo of falls to go on display.
Far more pristine, like Iguaçu Falls, than what we see today, but then again, what would the Falls be without the Ripley's Believe It or Not! Museum or Maple Leaf Village, two of my favorite places as a kid?
As the daguerreotype shows and as many say, the Falls are more beautiful from the Canadian side. As Western New Yorkers reply, that's because from there you can see the American side.