Located at Mounds Park in St. Paul Mn Right next to the 3 native american burial grounds and overlooking a huge cliff. It is marked in the cement, but is not widely known or talked about. When you stand in the center circle your voice surrounds you but only you can hear the difference. It is mind blowing!! Feels as though it reprograms your brain into being able to believe in all types of things you never thought were possible. in the concrete is a spiral pattern surrounding the circle, and when people move around and stand in different sections, it changes what the person in the center hears too. It made me want to sing at the top of my lungs but my mind was so blown i couldnt remember any songs! I definitely get the feeling that singing or chanting with a group here would trigger something incredible seeing as it is the perfect tool to tune yourself with. – Anonymous