![The Fort de Joux. The castle commands the mountain pass Cluse de Pontarlier and was improved by famous architect Vauban Stock Photo - Alamy The Fort de Joux. The castle commands the mountain pass Cluse de Pontarlier and was improved by famous architect Vauban Stock Photo - Alamy](https://c8.alamy.com/comp/KD1D0Y/the-fort-de-joux-the-castle-commands-the-mountain-pass-cluse-de-pontarlier-KD1D0Y.jpg)
The Fort de Joux. The castle commands the mountain pass Cluse de Pontarlier and was improved by famous architect Vauban Stock Photo - Alamy
![The Fort de Joux or Château de Joux is a castle, transformed into a fort, located in La Cluse-et-Mijoux in the Doubs department of eastern France Stock Photo - Alamy The Fort de Joux or Château de Joux is a castle, transformed into a fort, located in La Cluse-et-Mijoux in the Doubs department of eastern France Stock Photo - Alamy](https://c8.alamy.com/zooms/9/617585fb1ffd46ddba591f7b3f6cb822/wme74p.jpg)
The Fort de Joux or Château de Joux is a castle, transformed into a fort, located in La Cluse-et-Mijoux in the Doubs department of eastern France Stock Photo - Alamy
![Castle, Château de Joux, La Cluse et Mijou, Pontarlier, Doubs Department, France, Stock Photo, Picture And Rights Managed Image. Pic. H44-10995155 | agefotostock Castle, Château de Joux, La Cluse et Mijou, Pontarlier, Doubs Department, France, Stock Photo, Picture And Rights Managed Image. Pic. H44-10995155 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/86fde6760ce5ad8b6e09a59e5e97ec35/h44-10995155.jpg)