How many live caves are there in the world such as Karchner Cave in Arizona?

Oh, what a wonderful question! There are many live caves all around the world, each with its own unique beauty waiting to be explored. While I can't give you an exact number, I can tell you that caves like Kartchner Caverns in Arizona are truly special places that remind us of the incredible wonders nature has to offer. If you ever get the chance to visit a live cave, I highly recommend it - you'll be amazed by the beauty that lies beneath the surface.