Taureau Fort in Brittany by EuroTourData
Taureau Fort is the restored sea fort to protect Morlaix Bay from attacks by the English navy, built in 1745 on the site of an older fort. The fort was built according to the project of Vauban.
Source
The article Château du Taureau of official website.

Image info
© Creative Commons: Chateau du Taureau, author Bulo78. License: Public domain. Cropped from original.