Concrete wall with curved protrusions and greenery visible.
A view of a part of a concrete wall. It has black stains on it. It has two beige-colored curved protrusions on the left that are side by side. They have a pole coming down under them in the middle. The middle of them is open. Green leaves are visible through the opening of the first one on the right. The other one is covered by a tree in front of it. Part of a tree is visible on the far right. The sun is shining on it. Trees are on the left. A shadow is over the one tree that is farthest to the left. The sky is blue and cloudless, and the side of an airplane can be seen on the left. It is over a treetop, facing to the back and slightly to the right.