Presenting the "Grothenstick"! It is my representation of a scheme (in algebraic geometry). The stick is the Zariski topology. It is a crude approximation of the real thing. But it is good enough to carry a sheaf of rings. And adorned with its sheaf of rings, it looks quite reasonable. In fact, when you get used to it, you no longer see the underlying stick; you just see the rings! #algebraicgeometry #scheme #grothendieck #mathematics