Students from a nearby school in the East Hollywood area of Los Angeles plant flowers in an old car tire as they take part in "Parking Day L.A. ," Friday, Sept. 18, 2009. Activists took up parking spots in cities across the nation and temporarily install sod, potted plants, lawn chairs, creating miniature parks in an effort to raise awareness about the lack of open space in urban areas. AP Photo logo AP Photo 2 months ago

Students from a nearby school in the East Hollywood area of Los Angeles plant flowers in an old car tire as they take part in "Parking Day L.A. ," Friday, Sept. 18, 2009. Activists took up parking spots in cities across the nation and temporarily install sod, potted plants, lawn chairs, creating miniature parks in an effort to raise awareness about the lack of open space in urban areas.