Hello how may I help you? hello i'd like some assistance regarding world records Sure, I can help with world records. can you check what is the tallest indoor waterfall Sure, the tallest indoor waterfall is at "Mega Water Fun" in Duluth, MN. great, where can the tallest waterfall be found? The tallest natural waterfall? yes The tallest natural waterfall is at Lake Victoria in Africa. thanks, bye Goodbye.