In 2014, photos of a "frozen" Niagara Falls went viral -- but the falls didn't fully freeze. To see that, you have to look back at least as far as Feb. 6, 1936.
A photograph bearing that date from the Buffalo News archives appears to show the American falls frozen over completely. In the photo, a trail of spectators can be seen walking just above the brink on the rapids of the falls and on the ice shelf in the gorge below.
Oddly, temperatures that year weren’t as harsh as they were in 2014.
Between Jan. 23 and Feb. 2, 1936, weather service records show, the temperature never rose above 17 degrees, but it also didn’t drop below -3.
Click on the image below to view a larger version.