A brutal winter storm not only dumped snow across the US and Canada and sent temperatures plunging, it froze one of North America's top tourist spots.

People visiting Niagara Falls are sharing pictures of the attraction frozen by the cold temperatures on social media.

Like a movie: Parts of Niagara Falls have frozen over. Credit:Instagram / @ingegroot

Visitor Emma Grafham told CNN the attraction reminded her of the movie Frozen.

"There was even this set of stairs that were placed just outside the look-on spot and they had so much ice on them, it looked like Elsa had just cast her arm out and summoned up some stairs like she does in the movie," Grafham said to CNN.