Between Thionville, Metz and the Luxembourg border stretches one of the largest military construction sites of the 20th century: the Ligne Maginot (the Maginot Line). Kilometres of galleries, retractable turrets, combat blocks and genuine underground cities can be visited today, just minutes from our accommodation. Here is our guide to planning a historical getaway — with the family, among enthusiasts or as a couple — capped off each evening by a comfortable place to drop your bags. The good news: from our homes in Thionville, Garche, Manom or Yutz, every major fort is within an hour’s drive.
The Ligne Maginot, a concrete giant at the gates of Thionville
Built in the 1930s to protect France’s north-eastern border, the Ligne Maginot is far more than a simple wall: it is a true underground city, with its own power stations, kitchens, infirmaries and barracks buried dozens of metres below the surface. The forts come in three main formats: the large forts (gros ouvrages), such as the Hackenberg, able to shelter several hundred men; the small forts (petits ouvrages), such as the Fort Casso; and the interval shelters (abris d’intervalle), such as the Zeiterholz. The Thionville area boasts a rare concentration of these sites, making it one of the best starting points in France to explore them. From our homes in Thionville, Garche, Manom and Yutz, most of the forts lie within 25 minutes of the main tourist attractions, while all the great heritage sites — the Ligne Maginot and the former U4 ironworks alike — remain within an hour’s drive.
The Hackenberg in Veckring: the largest fort open to visitors in France
About thirty minutes from Thionville, the Hackenberg, in Veckring, is the largest fort open to visitors in France: nearly 10 km of galleries and nineteen combat blocks spread beneath 160 hectares. The guided tour is partly aboard the original little electric train and takes in the power station, the barracks, the kitchens and — the highlight — a real artillery turret brought to life. The temperature holds steady at around 12 °C, summer and winter alike.
Practical details: the fort is open for much of the year by reservation — daily in high season (April to mid-November) and on Wednesday and Saturday afternoons in winter. Budget-wise, expect around €15 for an adult and €8 for a child. The 2026 opening times and prices should still be confirmed directly with the fort at maginot-hackenberg.com.
In Thionville itself: the Fort de Guentrange
Fancy staying in Thionville itself? The Fort de Guentrange, a former German fortification (Feste Obergentringen) that predates the Ligne Maginot but was folded into its defensive network, lies just minutes from the town centre. Inside you’ll find three armoured barracks, underground galleries, the north battery, a restored turret and sweeping views over the Moselle valley. It is usually open from May to September, on Wednesday, Saturday and Sunday afternoons, for around €5. Roadworks are planned in the area for 2026, so it’s worth checking access and opening times before you set off. More information at fort-guentrange.com.
The Zeiterholz: the Maginot on a human scale, out towards Entrange-Angevillers
For a more intimate experience, head to the Zeiterholz, an interval shelter in the Entrange-Angevillers area, west of Thionville. More modest than the large forts, it houses a small museum and a video screening that put soldiers’ daily lives into context. The site is generally open from May to late October, by reservation, for just a few euros (2026 times and prices to be confirmed). It’s a good choice for a shorter visit, and the perfect complement to a large fort such as the Hackenberg.
Heading to the Pays de Bitche: Fort Casso, for the true enthusiasts
True enthusiasts will push on to the Pays de Bitche, in the east of the department. Fort Casso, a small fort at Rohrbach-lès-Bitche, less than 10 km from the German border, lets you watch the manoeuvring of an impressive 135-tonne turret, in a cool 13 °C atmosphere. Allow around 2 hours for the visit. Online booking is compulsory (at least 1 hour before you arrive), and the 2026 hours have yet to be confirmed: the site is usually open from April to October in the afternoons, with morning slots at the height of summer. It makes a great day trip from Thionville or Metz.
Planning your visit: season, booking and what to bring
A few pointers for a successful visit. The season broadly runs from May to October, with the Hackenberg staying open for much of the year. Booking is either compulsory or strongly recommended depending on the site — especially so for the Hackenberg, Fort Casso and any guided tour. Underground, the temperature settles at around 12 to 13 °C, so pack a warm jacket and closed, comfortable shoes, even at the height of summer. Allow 1½ to 2 hours per fort, or a good half-day once you factor in the journey.
One important thing to know before you book: these forts are not accessible to visitors with reduced mobility or to pushchairs. They feature numerous stairs, long galleries and floors that are at times uneven, so they are not suitable for wheelchair users or prams. With young children, stay alert (steps, darkness, the chill) and opt for a short format such as the Zeiterholz.
With the family, in a group or as a couple: where to drop your bags
After a day spent underground, there’s nothing like a comfortable place to rest. Here are our best-located options for a stay in the footsteps of the Ligne Maginot:
- Le Grand 8 (central Metz, up to 8 guests, from €115 a night): ideal for families, groups or business stays; 24/7 card-access parking at the Qpark P3 car park on boulevard de Trèves.
- Nid des Cigognes (Garche area, up to 8 guests, from €115 a night): perfect for branching out to the Zeiterholz and the Hackenberg; free parking.
- F2 Cattenom (same building as the Nid des Cigognes, Garche area, 2 guests, from €56 a night): less than 5 minutes from the Cattenom nuclear power plant (CNPE) and well placed for Luxembourg; free parking.
- Ville de Cœur (Thionville, 2 guests, from €70 a night): perfect for couples, a stone’s throw from the Fort de Guentrange; a space in the secure underground Capucins car park (24/7 card access), right beneath the building.
- Nid Douillé (central Thionville, 2 guests, from €58 a night): the perfect base for doing everything on foot — the station is less than a 10-minute walk away via the passerelle de l’Europe (fully pedestrian) and Luxembourg is 25 minutes by train; paid parking is available at the République car park (300 m away, chargeable on weekdays from 8am to 7pm) or free at the Liberté car park (800 m away).
And there’s more to come: our Suites Sensorielles in Metz Devant-les-Ponts (including the Suite Éclipse) will be unveiled soon, as will the Refuge du Château in Manom (two units, on the ground floor and the first floor).
Every home has a washing machine (with an iron and ironing board, plus a clothes airer or tumble dryer), and a sliding discount kicks in from 5 nights, then in 7-night tiers: the full scale is available on request or with a quote. Book direct on SleepInMoselle and you’ll enjoy complimentary drinks, a late checkout when availability allows, and a promo code reserved for our newsletter subscribers. Over 800 Airbnb reviews (Superhost status), secure online payment and self check-in, 24/7. A named invoice is provided for every stay (furnished rental, not subject to VAT).
Practical information 2026
- Gros Ouvrage du Hackenberg (Veckring): guided tours (~2½ hrs), booking advised; afternoon departures (2–3.30pm), morning slots in July–August. Prices: adult €15, child under 16 €8.
- Fort de Guentrange (Thionville): closed for the 2026 season (access road collapse) — reopening unconfirmed, check before making any trip.
Frequently asked questions
Which fort should I visit first?
The Hackenberg, in Veckring: it’s the most impressive and the most complete, with nearly 10 km of galleries, an original little electric train and an artillery turret brought to life. It’s the best gateway to discovering the Ligne Maginot.
Can you visit in winter?
Yes, but with a reduced offering. The Hackenberg stays open for much of the year (Wednesday and Saturday afternoons in winter), while the other sites mainly open from mid-spring to autumn. Do check the 2026 opening times before setting off.
Is it suitable for children?
On the whole yes, and it often makes for a memorable outing. Bear in mind, though, that it’s 12 to 13 °C underground, there are stairs and closed shoes are essential. A short format such as the Zeiterholz suits younger children better.
Are the forts accessible to visitors with reduced mobility or with a pushchair?
No. These sites have numerous stairs, long galleries and floors that are at times uneven; they are not suitable for wheelchairs or pushchairs.
Do I need to book?
Yes, in the vast majority of cases. Booking is compulsory in particular for the Hackenberg, Fort Casso and the Zeiterholz. For Fort Casso, it’s done online, at least 1 hour before the visit.
How long does a visit last?
From 1½ to 2 hours of guided tour depending on the fort, or a good half-day once you count the journey from Thionville or Metz.