Gosper line fractal!
Have a look at these locations: [1] and [2]. The Wikipedia page has more information. Extract below.
The Gosper curve, named after Bill Gosper, also known as the Peano-Gosper Curve and the flowsnake (a
spoonerism of snowflake), is a space-filling curve whose limit set is rep-7. It is a fractal curve
similar in its construction to the dragon curve and the Hilbert curve.
The Gosper curve can also be used for efficient hierarchical hexagonal clustering and indexing.
Changing the number of iterations will kick-off an timed animation showing you all the steps. So please be patient until the animation is finished before changing the number again.
Number of segments: