I'm crushing on everything Korean graphic design studio Zero Per Zero is doing. Their line of travel products sport the studios unique City Railway System maps:
Whereas conventional subway maps aim at conveying information as clearly and concisely as possible, the City Railway System by ZERO PER ZERO distinctively incorporates symbolic elements of each city into its map while preserving clarity. As a special consideration for tourists, major landmarks and tourist attractions are indicated on the subway maps, so that tourists can easily figure out the fastest way to get to the destination at a glance.
They have travel managers for carrying passports and important travel documents, along with card holders and luggage tags all featuring the studio's railway maps.
(images via Zero Per Zero)