Snails following a dragon curve.
Wow I have reached 200 posts 😀
Space filling curve 2.
Inspired by http://www.fractalcurves.com/
Space filling curve, five generation 2. Inspired by http://robertfathauer.com/IterationArt.html
Spiral illusion. Stare at the middle. Do you see the spiral? But these are just circles!
Outside the box.