Hello how may I help you? Can you look up something? sure how can i help I am interested in the indoor waterfall that is the tallest. Where is it located? I will check for you one moment I see the biggest indoor waterfall is at a hotel in dubai That's quite some distance from me. Where is the tallest waterfall overall located? I think it is niagra falls in canada That is much closer. Can you tell me how tall Niagara Falls is? Its very tall I can find out exact details if you like? Yes. i was curious about the actual height. its 9000 feet tall