On may 8th we discovered a circle in the back of our yard on the lawn, there were strange puncture holes and it just looked different from the rest of the lawn. well through out the summer the circle has remained and the vegetation grows differently within and on the perimeter. i've taken pictures through out the summer and would like to share them and get your thoughts. we have also had 2 sightings in the area within the 2 years prior to this. first sighting my spouse was the only one to witness but he did capture a photo. second sighting we both witnessed it and it actually appeared about were he saw the first sighting but it came straight toward us and actually flew over our heads past our home northwards. it was silent the whole time i believe 3 lights on it, but we couldn't make out a shape, which is weird brace it seemed close like 500-1000 feet from the ground. we were just captivated by it, and couldn't take our eyes away from it, which afterwards it really bummed me out i didn't run and grab my phone to film it. it didn't even cross my mind. that's our experience, the circle in the lawn is still there and has been all summer. it's just strange. that i have pictures of and the first sighting. photos are may 8, 2018- august 14, 2018-august 20, 2018- october 7, 2018- october 13, 2018. october 13 photo some kind of mushrooms are growing around perimeter. i have more pictures, just couldn't fit them all.