Pi Day—Free Day!

The museum is open Friday, March 14, 2014 • 10:00 a.m.–5:00 p.m. PLEASE NOTE: Pi Day events are from 1:00 to 3:30 p.m.
Exploratorium, Pier 15, Central and Outdoor Galleries


All Ages

Note: Entry is subject to capacity; admission is not guaranteed. We don't accept group or field trip reservations; group entry is discouraged due to large crowds. Finally, please note that food and drinks are not allowed in the galleries.

Come visit us on March 14 (Pi Day) when we open our doors to the public for free.

Welcome to the 26th annual Pi Day, the mathematical holiday founded at the Exploratorium and celebrated by number lovers around the world. To honor the never-ending number 3.14159... (and Einstein’s birthday), we’ll serve up π-themed activities, rituals, antics, and plenty of pie. Find out what's so special about this famous mathematical constant, and take your (decimal) place in our annual march to the Pi Shrine!

Learn more about our Free Access Program and see a list of free days in 2014.

Schedule of Events

1:00–3:30 p.m.
Pi Activities with Explorables and the Explainers
Central Gallery

1:00–3:30 p.m.
Pizza Pie Dough Tossing with Pasquale's Pizzeria
Outdoor Gallery

1:00–3:30 p.m.
NanoJems: Million Digits of Pi
East Corridor

1:15 p.m.
Why Pi? With Ron Hipschman and Lori Lambertson
Phyllis C. Wattis Webcast Studio

1:30 p.m.
Pi Procession Gathers
Outdoor Gallery

1:45 p.m.
Pi Procession Begins

1:59 p.m.
Pi Procession Arrives at Pi Shrine
Public Plaza

2:15 p.m.
Pie Serving!
Outdoor Gallery

2:30 p.m.
Cinema Arts: Seeing Circles
Kanbar Forum