Hello how may I help you? Hi! Can you please tell me where the tallest indoor waterfall is located? Sure! its located in Singapore. Great! I have one more question. Alright! What is it? Where is the tallest waterfall (not indoors) in the world? That would be Angel Falls in Venezuela! Thank you so much you have been so helpful. Sorry for making you wait on me a bit in the beginning bot. I'm sure you are a very busy bot. No problem. Thank you and have a wonderful evening! Thanks you too! Bye now! Take care, thanks for using WR buddy