The Golden Spiral above is created by making adjacent squares of Fibonacci dimensions (I did mine using a scale of 2). An arc is then made across each square.

      This spiral is called equiangular, because for each quarter turn (90 degrees or pi/2), the spiral increases by a factor of phi. That is, if you take one point, and then a second point one-quarter of a turn away from it, the second point is phi times farther from the center than the first point. All equiangular, or logarithimic spirals increase by a factor of phi.