Ancient holy labyrinth maze in 3D

Whilst touring the USC Library in Los Angeles, CA; I happened upon a map of the the 'world' that dates back to 1300 AD called the Hereford Map. On this map, there was a meticulously drawn labyrinth placed where Sicily is supposed to be. I took a snapshot and looked it up later.

It turns out that the origins of that particular maze is shrouded in mystery. There's no record of the intention of this labyrinth or why it's on the floor of Chartres Cathedral in France, or on the wall of the Lucca Cathedral in Italy, or showing up in mysterious places in other parts of the world like Whites Chapel in Texas. Crazy, eh?

I've made versions that are 100mm (pictured), 70mm and 60mm diameters.

I also made another maze based on West World. Excellent show that it is:

https://www.thingiverse.com/thing:2029662

If you found this useful, it would bring me great joy to see your work - so be sure to share. :)

Or, better yet, please feel free to dump a bitcoin or two here:

1Py3TUeR8noBN2giHyFV1GfB6x3Kh2WEVv

... include a note to the effect of "Hi 3E8, thanks for the mystery holy labyrinth thing... my life is infinitely better on account of it and please accept this paltry amount in gratitude".

You're welcome! (in advance) :D

Also, feel free to peruse my other submissions which are almost as varied as they are many:

http://www.thingiverse.com/3E8/designs

Enjoy!

Setpember 24, 2017 update: Added the clean version that doesn't have any bumpies on the edge.

April 22, 2019 update: Here's a 3D ramp version of the maze that will actually allow a ball bearing to ride all the way to the center:

https://www.thingiverse.com/thing:3581536