Hello how may I help you? Can you help with questions about world records? Sure what record do you want to know about? I want to know where the tallest indoor waterfall is The Gardens By the Bay has the largest indoor waterfall. It's in Singapore. Thanks. Where is the tallest waterfall located? Angel Falls is the tallest waterfall in the world. It's in Venezuela Thank you! Do you want to know anything else? No, that is all. Thanks for the help Have a good day!