The image shows a large military artillery cannon on display in a museum. The cannon is mounted on a green metal platform with a metal railing around it. It has a long, cylindrical cannon with a pointed tip and a long barrel extending from the top. The body of the cannon is covered in green paint and appears to be made of metal. There are several smaller cannons on the platform, some of which are also covered in paint. In the background, there are trees and a yellow fence. The sky is overcast and the ground is wet, suggesting that it has recently rained.