Fort Mont-Valérien
Suresnes, France · built 1841
Fort Mont-Valérien (Forteresse du Mont-Valérien, [fɔʁtəʁɛs dy mɔ̃valeʁjɛ̃]) is a fortress in Suresnes, a western Paris suburb, built in 1841 as part of the city's ring of modern fortifications. It overlooks the Bois de Boulogne across the Seine.
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).