On Friday, environmentalists and public space activists in cities around the world celebrated Park(ing) Day by taking over parking spots and turning them into temporary miniature public parks. The idea is to reallocate a space originally provided for storing a privately owned object (i.e. a car) and make it available for public use. The Philadelphia Park(ing) Day event got quite creative with windspinners, coffee grounds and bike parking.
This Park(ing) spot (above) provided coffee grounds for people to use when composting.