Gosper curve

A Gosper Curve is a shape made of straight lines that can be drawn with just a few steps. To make one, start with a straight line. Then, make a triangle with three straight lines coming out of the middle of the line. After that, make a square with four straight lines coming out of the middle of the triangle. Now make a pentagon, with five straight lines coming out of the middle of the square. You can keep going, making more and more shapes, and in the end, you'll have an interesting looking Gosper Curve.