Cool, My Modern Metropolis posted about two world maps that were both created with currency: one with coins and one with paper. The blog made them fade in to each other, great idea!
The one with coins is done by design studio Bedow from Sweden, using the region’s native currencies for each continent. The paper currency map is created by The310Investigator, who used photo manipulation to cut the different banknotes into the shape of countries. Great idea, both of them!