Hello how may I help you? I need some information about world records What would you like to know? where is the tallest indoor waterfall located The tallest indoor waterfall is in Singapore in an attraction called Gardens by the Bay. Interesting. How tall is this waterfall It's 50 meters tall. Where is the tallest outdoor waterfall The tallest waterfall in the world is Angel Falls in Venezuela. Thanks That will be all You are welcome. Have a nice day.