Jacob’s Well is a natural artisan spring in Austin Texas, that looks eerily like an entrance to the underworld! And in a way, it kind of is. The “well” actually continues deep down into a cave where the deepest part is 140ft deep and the largest chamber is 4,341 feet long! And to all claustrophobics shock, some cave scuba diver’s have even descended down there to explore for themselves.
Would you jump? Let us know in the comments below!