Today, March 14th, is a big day for the fans of desserts and mathematical constants. Yep, it's π day (also Albert Einstein's birthday)! How to celebrate? Well, you could practice memorizing the first few thousand numbers of π, or you could refrain from working your brain on this most numerical of holidays and try one of these options:

Over at Pie Face NYC they are shaking things up. Where normally they offer samples of just one of their pies at a time, today they are offering samples of all of them! Locations

At Four & Twenty Blackbirds slices of all of their new seasonal flavors (Rosemary Honey Shoofly, Green Chili Chocolate, Sweet Potato Apple Crumble, Maple Lime Custard) are being sold for $3.14 all day! 439 3rd Avenue, Brooklyn

If you prefer, you can always watch Darren Aronofsky's very New York debut movie (and contemplate drilling your brains out) or you could drop the math and keep your focus on the food side. To that end Amazon has all of the lovely, late TV show Pushing Daisies available here. A twee mystery show about a pie maker who can bring back the dead? That's like an irrational number!

Fine. Fine. You (or your little ones) prefer to celebrate a little more traditionally? For those .14 of you, there is a celebration for students 11 and up planned for this afternoon at Museum of Math from 4 through 4:45 today! After all, pi day started in a museum! 11 East 26th Street