A favorite geek hangout that specializes in pi-themed and pseudo-pi merchandise. Most items cost $3.14 each, with a handful priced at $31.41 or $314.15, and a few special collectibles going for $3,141.59 apiece.
Since Pi-Dollar Shop opened, tens of thousands of math-anxious visitors have left with a more positive view of π and math than when they walked in.
by Numerati March 11, 2026
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