15 locations on Earth where gravity seems to be ineffective

We wouldn't be able to walk if it weren't for the earth's gravitational pull. It is what connects the earth to us and most of the things around us. However, there are some locations on earth where a peculiar phenomena is at play and the gravitational pull is zero. Here are 15 locations where gravity doesn't seem to work, from the waterfall whose flow defies physics to the mysterious anomaly in a forest west of Santa Cruz, California.