The inspiration for the design of Paris Railway System came from the Eiffel Tower, a Parisian symbol. On this map, the Seine sketches the arch & silhouette of the Eiffel Tower, upon which the Parisian railway combination of Metro, RER & Tram are laid, filling in the body of the Eiffel Tower. The beams of searchlights zooming out from the very top of the Eiffel Tower & the clouds representing the zone system mingle with the railway map to complete the nightscape of Paris. City Railway System is a new approach to projecting the identity of a city onto its subway map. Whereas conventional subway maps aim at conveying information as clearly & concisely as possible, the City Railway System by Zero Per Zero instinctively incorporates symbolic elements of each city into its map while preserving clarity. As a special consideration for tourists, major landmarks & tourist attractions are indicated on the subway maps, so that tourists can easily figure out the quickest way to get to the destination at a glance. The railway map itself is also good as a souvenir.