1. Enchanted Well at Chapada Diamantina National Park, Brazil
The enchanted well, in brazil, is not actually a well and no one knows whether it is really delighted or not. It is a giant hollow pool which is 100 feet deep and astoundingly clear. It has the best transparency through which one can see the tree trunks and rocks lying on the bottom of the pool. One can see its best view when sunlight falls into a small opening bringing out a clear blue reflection in the water.