Happy Pi Day! In honor of our favourite mathematical constant, here are some of the best ways to spend 3.14:

Make a Pi pie — take a look at some of these beauties for inspiration, then test your mettle with the Pi(e) day Baking Challenge!

Build a computer with a Raspberry Pi or a raspberry pie.

Memorize the digits of pi — Pi has been calculated to over one trillion digits. We think you can get to at least 20, but this memory aid goes all the way up to 1500!

3.14 Enter the Pi Day essay contest with New Scientist for your chance to win a Kano Kit!