Rivers and Borders is a reflected double world map: one side is reduced to international borders, the other to the world’s major rivers. The map is rendered in a fluorecent marker typically used for tagging.
fluorescent marker on wall surface
W1000cm x H270 cm
Strains of thought in Antonia Hirsch's World Map Project
Monika Szewczyk, Fillip, 2006 (pdf)