The image shows an old cannon on display on a rooftop. The cannon is made of metal and has a long, cylindrical body with a pointed tip. It is mounted on a large wooden wheel with spokes radiating outwards from the center. The wheel appears to be old and weathered, with some rust and discoloration visible on the surface. In the background, there are buildings and trees visible, suggesting that the cannon is located in a city or urban area. The sky is blue and the overall atmosphere of the image is bright and sunny.