Hello how may I help you? Hi, can you tell me about a world record? Sure which world record? I'm wondering where the tallest indoor waterfall is? The tallest indoor waterfall is in Singapore at at Gardens by the Bay How tall is that? It's 115 feet tall or 35 meters Wow How about the tallest outdoor waterfall? Angel Falls in Venezuela has the tallest outdoor waterfall. Awesome. thank you. You're welcome.