Ouvrage Sainte-Agnès

Ouvrage Sainte-Agnès is an underground military fortification with tunnels and chambers built beneath solid rock. The site functions as a museum and reveals how this defensive structure was organized and constructed.

The fortification was completed in 1934 and formed part of the Alpine Line defense system against potential Italian attacks. During World War II, it played a key role in defending the French border in 1940.

The museum displays combat equipment and living spaces from the 1930s that show how French military engineering developed during that period. The objects on view give a sense of daily life for soldiers stationed in this location.

Visitors should expect uneven floors and narrow passages since this is an original military facility. Sturdy shoes and appropriate clothing are recommended to move safely through the underground environment.

The facility contains several specialized combat blocks, including artillery positions and observation posts. These positions offer views toward the Mediterranean and demonstrate the strategic importance of the location in hillside terrain.