This is a Voronoi Map of Colombia, made with GeoJSON, D3.js and the Voronoi function of D3. It is inspired on the United States of Voronoi of Jason Davies and as he says, the idea of this map is to show:
The Department borders for the contiguous Colombian Departments have been redrawn such that all points in a state are closer to its capital than that of any other state
You can find the code here Enjoy it :) and please, reference me and this site if you want to use or share this material