Linden Park, Street, Brookline, MA 02445, US

This massive playground has everything you could ask for. There are three soccer fields, a basketball court, a baseball field and a tennis court. If you like to play a pick-up game with friends or practice your game on your own, this is the park for you. As you try to improve your long-range shooting, your children can play on the playground that's tucked in the corner behind all these courts. There they can play on the swings, slides or even try and climb a small rock wall. Don't be afraid to bring your dog down to the field as well. There's a path that circles the entire field--if you follow it long enough, you'll reach a pond with a large open area where your favorite pet can get a chance to stretch its legs.