Fort Saint-Sébastien, Military training fort in Saint-Germain-en-Laye, France.
Fort Saint-Sébastien encompasses 32 hectares of land with earthwork fortifications and wooden structures built for military training purposes.
Constructed in 1669 under Louis XIV's reign, the fort served as a training ground for up to 20,000 soldiers and several thousand horses.
The fort represents French military engineering advancement through its sophisticated network of zigzag trenches designed for defense practice.
Archaeological excavations conducted between 2011 and 2012 revealed the fort's structures, including defensive trenches and military training areas.
The fort implemented Vauban's revolutionary siege techniques, which later contributed to the French army's swift victory at Maastricht in 1673.
GPS coordinates: 48.98250,2.14900
Latest update: June 23, 2025 09:48
Château de Maisons
3.9 km
Fort de Cormeilles-en-Parisis
3.4 km
Pavillon de la Muette
3.1 km
Musée de la batellerie
4.1 km
Église Saint-Martin d'Herblay
985 m
Église Saint-Martin de Cormeilles-en-Parisis
4 km
Parc de Maisons-Laffitte
3.4 km
Maison Doulton
2.9 km
Hôtel Royal
3.9 km
Église Saint-Nicolas
3.8 km
Les Caves du Nord
3 km
Jacques
4 km
Pavillon des Gardes de Maisons-Laffitte
3 km
Juillard property
3.1 km
2 Muette street
3.8 km
24 avenue Eglé
3.5 km
72 Paris street
3.9 km
Vieille église de Maisons-Laffitte
4 km
36bis Muette street
3.5 km
Property 39 Albine avenue
3.3 km
Old fountain
4 km
Park doors
3.9 km
Golf de Maisons Laffitte
3.4 km
Église Saint-Martin de Montigny-lès-Cormeilles
3.6 km
Église Saint-Nicolas de La Frette-sur-Seine
2.1 km
Temple antoiniste de Conflans-Sainte-Honorine
3.2 km
Église du Christ Roi de Cormeilles-en-Parisis
3.7 km
Écuries du château de Maisons-Laffitte
3.8 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes