The world's most famous waterfall has been frozen over for the first time in a hundred years. Chilly temperatures, that is rather abnormal in U.S. froze American parts of Niagara Falls and the normally fast-flowing water stopped moving.

Last time the Falls froze in 1848 and 1911. 

Stunning photos of the American part of Niagara Falls enclosed in ice.

The old photo shows the Niagara Falls frozen in 1911.