This event is in the past.It took place on March 14, 2026 at Exploratorium.
Community FunCommunity FunCelebrate Pi Day where it all began: the Exploratorium invented this holiday in 1988. Join the annual Pi Procession around the Pi Shrine, dig into hands-on math exhibits, and claim your free slice of pie while honoring the infinite ratio that describes every circle in existence.
Hands-on science
Family-friendly
Interactive exhibits
Bay views
Tips
đ„§free slice of pie included
đ§źbring a friend for two-person exhibits
đcheck out the Bay Observatory Terrace views
$39.95
Pi Day Celebration
Telegraph Hill
Community FunCommunity FunCelebrate Pi Day where it all began: the Exploratorium invented this holiday in 1988. Join the annual Pi Procession around the Pi Shrine, dig into hands-on math exhibits, and claim your free slice of pie while honoring the infinite ratio that describes every circle in existence.
Hands-on science
Family-friendly
Interactive exhibits
Bay views
Tips
đ„§free slice of pie included
đ§źbring a friend for two-person exhibits
đcheck out the Bay Observatory Terrace views
$39.95
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