Did you know that vehicles travel 950,000 miles every year, looking for a spare parking spot rather than pulling into a premium priced parkade or selecting a spot a few blocks away? That's 38 trips around the world!

To protest this and the slow elimination of public urban greenspace in favor of development, some environmental activists dreamed up PARKing Day. What started four years ago in a single space in San Francisco is now celebrated in over 100 countries.

According to MSNBC, participants set up mini lawnscapes complete with portable grilles, lounges, and kiddie pools with their friends, while others created grassy oases for cyclists passing by.

What do you think - neat idea or time waster?