This is a community project that couldn't be born out of a single person and thus collects the contributions of many collaborators. Originally it was at stevekinney/pizza, to which go my thanks for the idea and first realization.
It goes without saying that many cities and countries are missing and we need your contributions to signal the best pizzerias in them. Only true pizza though, no deep-dishes or focaccias. Pull requests are more than welcome, vital even.