Hi, i think mystery spot in Santa Cruz, California is a vortex. Been there twice and unable to explain the strange things happening there. It is a privately owned famous attraction site in the middle of Santa Cruz forest. Going up the hill seems like there is a force pulling you down, people’s heights changes at the edge of vortex depending if you are in or out of vortex. Non metal objects like cigars roll upward instead of dropping down, you see yourself standing straight on the hill but actually you are not if you look the angle of your foot to your leg. please check out this site or come for a visit. People usually spend hours there and they give you a tour also. Very nice people running the place. Can not wait for your thought on this. Thank you for your informative great site. – Nadi