What is wayfinding?

My definition of wayfinding is:

   Wayfinding encompasses all of the ways in which people and animals direct themselves in physical space to navigate from point to point locations. Wayfinding can be indoors (architectural) and outdoors. Architectural wayfinding is commonly known as indoor navigation, which uses maps, information desks, or kiosks. Outdoor wayfinding uses street signs, maps, gps navigation, overhang signs on highways, markings on roads and buildings, etc. Wayfinding is used everyday by everyone without even knowing it sometimes.

   Here are some images of examples of wayfinding around the KU campus, and different cities. I want to go to London someday so I included a map of it! :)