The most quiet place I could imagine was Cross Lots Park. It is a huge land trust that only a few dog owners use to walk their pets. Cross Lots is located near a road, a train station, and a candle factory so there was a variety of quiet sounds I could hear from the park.
Car
Plane flying over head
Leaves of trees rustling in the wind
Dog in the park panting after its walk
Dog Chain sound as dog was walking
Birds
Dog barking at a different dog
Car door slamming
Train off in the distance
Footsteps of dog running
Owner talking to their dog
Me walking
Wind followed by a motorcycle driving by
Crickets
Geese
Car horn
Cicadas