The image shows a large military artillery cannon on display in a museum. The cannon is green in color and has a long, cylindrical body with a pointed tip at the top. It is mounted on a platform with four large wheels on either side. The platform is made of metal and appears to be made of concrete. In the background, there are other military vehicles and aircrafts on display. The museum has a high ceiling with metal beams and a large window on the right side.