The digits of π, walked. Each digit nudges the pen and it takes a step, and the first thousands of digits trace π’s wandering route. Trail turns gently into a flowing path; streets snaps to a right-angle grid (the classic walk on π); star fans into ten spokes. It never repeats and it never quite settles. Colour encodes the walk’s history; no digit appears as a numeral. The idea and the mathematics belong to the researchers listed in the credits. We built this toy to learn by living inside the construction.