It Looked Spooky But Here Is Why Niagara Falls Was Lit Up In Red If you saw Niagara Falls last night, it may have looked a little spooky, but it was lit up in red for two great reasons. It is one of the most recognizable natural tourist attractions in the country, and last night it was lit up in red. If you've never seen the falls illuminated in a different color, it's almost as if you've never seen the falls at all. It looks so cool and normally it's for a great cause that they're trying to bring attention to.