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Sat March 14, 2026

Pi Day at Exploratorium

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Welcome to our annual Pi Day! Help us celebrate this never-ending number (3.14159 . . .) and Einstein's birthday as well.

Founded at the Exploratorium by our own Prince of Pi, physicist Larry Shaw, Pi Day has become an international holiday, celebrated live and online all around the world.

Celebrate Pi Day at its birthplace! This irrational and transcendent holiday was founded in 1988 at the Exploratorium, and has since grown into an international phenomenon. Join in our annual procession around the Pi Shrine, enjoy slices of delicious pie, and think beyond circles and spheres with surprising exhibits about math and how it informs the world.

~~~

Pi Procession
1:59pm

Gordon and Betty Moore Gallery 4
With Mission Delirium

Grab a pi digit and get in line for the annual Pi Procession! A high-spirited crowd parades through the museum and circles the Pi Shrine 3.14 times, waving the digits of pi and dancing along to San Francisco brass band Mission Delirium. All participants will enjoy a free slice of pie following the parade.

Mission Delirium is a 12-piece brass and percussion band composed of the most enthusiastic musicians whose mission is to put a groove in your step.


Pie Serving
2:15pm

Gallery 5: Outdoor Exhibits
with The Tinkering Table Restaurant

A sweet treat awaits celebrants at the end of the Pi Procession. Grab a slice of pie and enjoy live music by brass band Mission Delirium while you eat.

The Tinkering Table Restaurant is one of two unique dining options at the Exploratorium and offers build-your-own bowls, made-to-order meals, and stunning views of the Bay.
Welcome to our annual Pi Day! Help us celebrate this never-ending number (3.14159 . . .) and Einstein's birthday as well.

Founded at the Exploratorium by our own Prince of Pi, physicist Larry Shaw, Pi Day has become an international holiday, celebrated live and online all around the world.

Celebrate Pi Day at its birthplace! This irrational and transcendent holiday was founded in 1988 at the Exploratorium, and has since grown into an international phenomenon. Join in our annual procession around the Pi Shrine, enjoy slices of delicious pie, and think beyond circles and spheres with surprising exhibits about math and how it informs the world.

~~~

Pi Procession
1:59pm

Gordon and Betty Moore Gallery 4
With Mission Delirium

Grab a pi digit and get in line for the annual Pi Procession! A high-spirited crowd parades through the museum and circles the Pi Shrine 3.14 times, waving the digits of pi and dancing along to San Francisco brass band Mission Delirium. All participants will enjoy a free slice of pie following the parade.

Mission Delirium is a 12-piece brass and percussion band composed of the most enthusiastic musicians whose mission is to put a groove in your step.


Pie Serving
2:15pm

Gallery 5: Outdoor Exhibits
with The Tinkering Table Restaurant

A sweet treat awaits celebrants at the end of the Pi Procession. Grab a slice of pie and enjoy live music by brass band Mission Delirium while you eat.

The Tinkering Table Restaurant is one of two unique dining options at the Exploratorium and offers build-your-own bowls, made-to-order meals, and stunning views of the Bay.
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Exploratorium 4 Upcoming Events
Pier 15, San Francisco, CA 94111

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