Celebrate Pi Day (March 14) by creating a beautiful cityscape of your own.
Very lightly, draw a grid on the paper to create 1⁄2" x 1⁄2" squares (this will be erased later).
Outline the blocks according to each digit of pi (3.14159265358979323846264...) and erase the rest of the lines.
Paint the sky whatever color you like.
Using a black marker, color in the buildings.