Harry Beck created a new kind of map that is began in London and the design is now used world-wide. This is an inspiring story and a great demonstration of thinking outside of the box.
https://www.facebook.com/SmallThingBigIdea/videos/1328242957321729/
About Harry Beck:
https://www.theverge.com/2013/3/29/4160028/harry-beck-designer-of-iconic-london-underground-map