Did you manage to eat a pie today? It's Pi Day, the perfect day for it. Americans write March 14th as 3/14, so it's pi, the irrational number that gives us the circle, and it's also Albert Einstein's Birthday. Einstein features in some of the memes of the day, like advertising pie for sale and a baby who is an Einstein lookalike, but the greatest pies you can imagine are being shown around the 'net today. The pie above was made by redditor Itzjacki with a pi symbol, but it's not a circle. That's because pie are square. But if you're going for a work of art, you need to turn to Jessica Clark-Bojin, also known as thepieous, who made the awesome pi pie below.
For sheer work involved, you can't beat this apple pie filled with apples cut into the shapes of numbers by nerdynummies. It must have been difficult to arrange them in the right order.
You'll see plenty more pies made for Pie Day, and some pies that are impressive even without any reference to the number, plus a wide range of Pi Day celebrations of all kinds in a ranked list at Bored Panda.