Walking Tour
Walking TourFort du Trou-d'Enfer
Marly-le-Roi
Step into the underground corridors of Monte Cristo at this haunting 1870s military fort, where crumbling barracks and shadowy dungeons bring 19th-century garrison life to vivid life.
19th-century military fort
Film location tours
Guided historical visits
Dramatic stone corridors
Tips
🏰"the dungeons are always chilling"
🦆once used to raise pheasants for presidential hunts
🗓️accessible only via ONF or Heritage Day tours
Fort du Trou-d'Enfer
Marly-le-RoiOpens Sunday at 9:00 AM
Walking TourWalking TourStep into the underground corridors of Monte Cristo at this haunting 1870s military fort, where crumbling barracks and shadowy dungeons bring 19th-century garrison life to vivid life.
19th-century military fort
Film location tours
Guided historical visits
Dramatic stone corridors
Tips
🏰"the dungeons are always chilling"
🦆once used to raise pheasants for presidential hunts
🗓️accessible only via ONF or Heritage Day tours