Walk along the Forest Trail at Autrey Mill Nature Preserve and you'll come upon the Monkey Massacre Memorial. According to folklore, a circus train crashed near Johns Creek sometime in the early 20th century and sent dozens of escaped monkeys scampering into the woods. The local farmers had never seen such creatures before, so they set out to get rid of the mystery animals in a not-so-humane manner.
An anonymous artist created a set of monkey statues to commemorate this dark moment in the area's history and send the message that not understanding something is no reason to destroy it. The concrete primates, which honor the victims of the massacre, can typically be found arranged in a circle along the trail, although their exact location does tend to occasionally change.