Piedmont Park is the crown jewel of the Atlanta park system. I believe it is the largest park in Atlanta and borders Midtown, giving it an incredible view of the Atlanta skyline. On any given day, you'll find walkers, joggers, bicycle riders, and plenty of people playing on the fields. It truly is Atlanta's playground. On Saturdays during the growing season, they also host a great farmers' market called the Green Market. In the summer, they have started a free movie series where they show movies once a week. People bring out their blankets and just watch great movies projected on a gigantic screen. Beware, it gets packed, so get there soon for good seats.