Dräi Eechelen Museum in Fort Thüngen, the fortress told from the inside

You can read Luxembourg’s fortress in the walls of the Ville Haute, in the casemates or in books. But the place where it clicks, for me, is here, inside one of its forts. The Dräi Eechelen Museum occupies the redoubt of Fort Thüngen, at the end of Kirchberg that faces the old town, and tells the story of the fortified city and the country through some 600 objects. It’s one of the museums I most recommend to anyone who wants to understand Luxembourg rather than just photograph it.

Three acorns and a fort

The fort takes its name from Baron von Thüngen, the fortress commander, and was built in 1732 around an earlier defensive work, the Park Redoubt, which Vauban had laid out fifty years before. A deep ditch surrounded it, and a 169-metre gallery cut through the rock linked it with Fort Obergrünewald. The Prussians enlarged it in 1836 and strengthened it in 1860.

After the Treaty of London in 1867 came the dismantling, and between 1870 and 1874 the fort was demolished. Only its three round towers and the foundations survived, the latter rediscovered in 1991. Those towers are the Dräi Eechelen, the three acorns, or Trois Glands in French, and they lend their name to the museum, the park and half the neighbourhood.

Forts Obergrünewald and Niedergrünewald, and Three Acorns Park

Thüngen wasn’t on its own. The museum itself counts four Kirchberg forts, Obergrünewald, Thüngen, Niedergrünewald and Olizy, and of the last only fragments survive underground. Obergrünewald began as the Parc hornwork in Vauban’s 1684 plan and took its name under the Austrians in 1716; the 169-metre gallery let soldiers reach its ditch safely during a bombardment. Niedergrünewald, further down, was a crownwork of three bastions undermined by tunnels, and its partly rebuilt keep is open to the public, with the countermine galleries reached from the ditch.

Three Acorns Park (Parc des Trois Glands) ties it all together, stretching behind the Philharmonie, the Mudam and the fort according to visitluxembourg. Landscape architect Michel Desvigne redesigned it and it’s open all year. For me it’s the best free part of the visit, because from the terrace in front of the fort the old town faces you and you grasp in a minute why someone wanted guns exactly here.

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What does the museum cover?

The full name sums it up, Musée Dräi Eechelen, Forteresse, Histoire, Identités. The story runs from 1443 to 1903, four and a half centuries during which the city was one of Europe’s great fortified strongholds until, after 1867, it no longer was. In between come the sieges, the changes of ruler, Vauban, the Prussian garrison and finally the forging of a national identity, which is the third word in the title. If that thread interests you, the Luxembourg fortress has its own page.

What strikes me most is the container. Walking through the fortress’s history inside a fort, with the walls and the underground gallery around you, changes how you take in everything else. I’d set aside at least an hour and a half, and a good deal more if you’re the sort who reads every panel. It also works well before a walk along the old ramparts, since you’ll then know what you’re looking at.

Price, and when it’s free

A single ticket is €7 as of September 2026, and the combined ticket with the National Museum of History and Art, the Nationalmusée um Fëschmaart, is €12, valid on the same day only. Groups of six or more pay €5 each.

My maths is simple. If you’re seeing both national museums and you’re 26 or over, the combined ticket saves you €2 and commits you to doing them on the same day, which the tram between Kirchberg and the Ville Haute makes easy. If you’re under 26, forget the sums, because you won’t pay at either.

The free list is generous. Under-26s, visitors with reduced mobility plus a companion, and holders of the Kulturpass, an ICOM card, the Friends of the Museums card or the Luxembourg Card, now the LuxembourgPass, go free. For everyone, entry is free on Wednesdays from 17:30 to 20:00 and during the last opening hour of each day.

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Opening hours and bank holidays

Doors open at 10:00 and close at 18:00 from Tuesday to Sunday, except Wednesday, when they stay open until 20:00. Mondays are closed. Bank holidays follow their own logic, so check before you go. There are five closing days a year, 1 January, 23 June, 15 August, 1 November and 25 December. Easter Monday, 1 May, Ascension Day, Whit Monday and 26 December keep normal hours; on 24 December it shuts at 14:00, and on 31 December at 16:30.

Getting there and pairing it up

It’s at 5 Park Dräi Eechelen in Kirchberg. The tram stops at Philharmonie / Mudam, the bus at Rout Bréck-Pafendall and the train at Pfaffenthal-Kirchberg, where the funicular climbs up. Driving, the Trois Glands car park is on rue du Fort Thüngen. The exhibition, underground gallery included, is accessible to visitors with reduced mobility. For any questions, the museum’s number is (+352) 26 86 98 02.

Mudam is right next to the fort. I’d do both on a Wednesday, Dräi Eechelen first from 17:30, then Mudam from 18:00, both free.

If you are short on time, see the best tours in Dräi Eechelen Museum and pick one that fits your day.

Where the bus does not go, a car does: compare car hire in Luxembourg before you arrive rather than at the desk.

If you still need a way in, check the best ticket deals to Luxembourg from where you are.