Pi Day falls on a Monday this year, and the Exploratorium will be closed. Join us again in 2012 for a fun-filled celebration of this international “geek” holiday that began right here at the Exploratorium.

For 2011, you might like to create your own Pi Day party. You’ll need pie, of course—either pizza or dessert pie—and someone who can recite pi to a whole lot of decimal places. And check out our Activities & Links for things to do, pi songs to sing, pi music to play, and more. Happy Pi Day!