Interlocking transit lines in red, blue, green, purple, yellow, and cyan form a complex network across a world map, with each colored route representing different metropolitan subway systems overlaid in a single composition. The lines flow and branch organically across continents, creating a dense, interconnected visual rhythm that transforms geographic borders into a unified system of human movement and connection. Printed on smooth white card stock and made to order, artwork on the front, blank inside, envelopes included in every set. A handwritten note that arrives as an independent artist's work.