This document summarizes the Park(ing) Day movement, which began in 2005 as a project to temporarily transform metered parking spaces into public parks. It has since grown into an annual worldwide event where citizens temporarily claim parking spaces for public use. The document outlines how the event has grown each year, with more participating cities and countries. It also discusses how Park(ing) Day has influenced cities to officially adopt programs for public parklets and pop-up cafes in parking spaces, showing how citizen-led initiatives can reshape urban public space.