Logo
From Polymath Wiki
The Polymath wiki needs a logo.
Add links below to candidate images - it should be in a standard image file type, and available under a suitable copyright license.
If you have comments on the images, please add them to Talk:Logo.
PNG format, Public domain
Three variations of a same idea: quite formal, over two lines, collaborative spirit.
Adding some more in response to comments: map-like less pixelized, puzzle
A more simplistic poly math logo.
JPEG format, Public domain
One with Da Vinci drawing in the background: Vitruve man,
