Apparently back in 1911 Niagara Falls froze and it was possible to walk from one side of the American Falls to the other. A few other things are apparent - the Falls was not as far back as it is now and there wasn't much around in those days - certainly no Casinos or SkyTower.
The photo at the left is so vivid that it is difficult to believe it was taken in 1911. It brought to mind a wonderful book I received as a gift many years ago called Photographs for the Tsar. It is filled with coloured photographs taken between 1909 and 1915 by Sergei Mikhailovich Prokudin-Gorskii as he travelled across Russia. The Library of Congress has an extensive collection of his work and has mounted several exhibitions of his work. Incredibly these photos were taken with primitive equipment using a 3 color glass plate system at the birth of photography.