Hello how may I help you? I want to know about World Records. What would you like to know? How about the tallest indoor waterfall, where's that located? The tallest indoor waterfall is in Singapore. How about the tallest outdoor waterfall? The tallest outdoor waterfall is in Venezuela. Oh I didn't know that. Thanks for the info. Can I help you with anything else? What's the height of that waterfall, the one in Venezuela? It is 807 meters tall. Thanks!