Fortifications of Paris in the 19th and 20th centuries

Columns: Dir | Name | Emplacement
1 | N | Fort de Cormeilles-en-Parisis | Cormeilles-en-Parisis | 2 | N | Fort de Montlignon | Montlignon | 3 | N | Fort de Domont | Domont | 4 | N | Fort de Montmorency | Montmorency | 5 | N | Fort d'Écouen | Écouen | 6 | N | Redoute de la Butte-Pinson | Montmagny | 7 | N | Fort de Stains | Garges-les-Gonesse

Example questions:
What new French town is the fort now used as a film depository in ? | When was the fort built in the French commune located 9.5 from the centre of Paris completed ? | What institution used the French fort in the Seine-et-Marne département as a research centre ? | What French town is the commune where a fort covering 30 acres was built twinned with ?

Answers:
Saint-Quentin-en-Yvelines | 1879 | Commissariat à l'énergie atomique | Shepshed