The image is a photograph of a sign on a stone wall. The sign is rectangular in shape and has a white background with black text. The text reads "Grand bastion" in French. Below the text, there is an illustration of a castle with a red roof and a blue sky in the background. 

On the right side of the sign, there are two illustrations of a map of the castle. The map is in black and white and shows the layout of the buildings and roads. The castle is surrounded by trees and there are several smaller illustrations scattered throughout the map.

The sign is attached to the wall with two metal pins. The wall appears to be old and weathered, with visible cracks and chips in the stone.