Man made?

Wood Art Man Made? Or Natural Occurrence Hiking❤ Hiking Trail Exploring Hemp Leaf Tree Trunk TreePorn Tree_collection
South By Southwest to West Coast 9 Atlanta Ga To Oakland Ca Aerial Imagery Bnw_friday_eyeemchallenge Natures Circles Earth's Surface Natural ... Or Aliens Landforms Man Made? Topography Geography Really Artistic Farmers Are Aliens Natural? Are We Alone? Aerial Photography Landscape Landscape_photography Landscape_Collection Black & White Black And White Photography Black And White Black And White Collection  Abstract Monochrome Grayscale