Municipality in the canton of Luxembourg, Guttland
Steinsel, Roman temples on the edge of the Grünewald
Steinsel is a municipality of 6,186 people (1-1-2026) north of the capital, with three localities, Heisdorf, Mullendorf and Steinsel. visitguttland highlights a Roman sanctuary with a central temple from the late 1st century, Roman baths beneath the church square and much of the Grünewald, the country's largest continuous forest, crossed by a heritage trail.
To me Steinsel is the best mix of history and countryside within easy reach of the capital. I'd see the Roman sanctuary with its information panels, head into the Grünewald on the heritage trail and, with a bike, ride back along the Alzette cycle path.
Before you go
What I would keep in mind
-
01 Most beautiful
An open-air Roman sanctuary
It had a central temple from the late 1st century and reached its peak in the 4th. Four buildings have been excavated and are explained on panels, according to visitguttland.
-
02 My tip
The Grünewald legends trail
The Grünewald heritage trail passes spots with names like the carriage road, the six princesses, the haunted house and the dead woman. It's free and starts in the municipality.
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03 Getting there
The Alzette cycle path
The Alzette cycle path runs through Steinsel on its way from Dommeldange, in the capital, to Ettelbruck, according to visitguttland. It's the nicest way to arrive without a car.
Dommeldange
Steinsel is a quiet municipality north of the capital, with 6,186 residents spread across Heisdorf, Mullendorf and Steinsel. For a visitor it has two things you wouldn’t expect a few kilometres from the banks and EU institutions, a Roman sanctuary and the way into the country’s largest continuous forest.
What’s left of Roman Steinsel?
More than you’d think. visitguttland describes a sanctuary with a central temple from the late 1st century that reached its peak in the 4th. Four buildings have been excavated, with panels explaining them. Beneath today’s church square, the foundations of a Roman residential complex with baths have been found, though the page doesn’t list them as open to visitors. For visitguttland, all this proves that this Alzette valley municipality played an important role in the region from Roman times onwards. To the north, along the Alzette, Lorentzweiler has another ancient trace, the reconstructed Neolithic house at Blaschette.
I like to pair it with the Raschpëtzer, the underground Roman aqueduct Steinsel shares with Walferdange. Do both in a morning and you’ve got a complete Roman trail without setting foot in a museum.
The Grünewald and its legends
Much of the Grünewald lies within the municipality. visitguttland calls it the most important continuous woodland in the country, and a heritage trail heads into it from Steinsel past spots with fairy-tale names, the carriage road, the six princesses, the haunted house and the dead woman. I can’t tell you the stories behind them, as the page doesn’t spell them out, but the names alone make me want to walk it. The government portal also mentions a grower in the commune with about 6.5 hectares of cherries, plums, pears and mirabelles, the fruit of Quetschentaart.
visitguttland stresses that the Grünewald has plenty of cultural and historic sites as well as its ecological and scenic value, and the trail is the way to see them. The official inventory also lists the Guttland.Trail Fuussepad, a hiking route through the municipality.
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By bike from the capital
visitguttland pitches Steinsel as an ideal stop on the Alzette cycle path, which links the Centre circuit at Dommeldange, in the north of the capital, with the Middle Sûre path at Ettelbruck. Following the river away from traffic, it’s one of the most pleasant ways to arrive. For more routes like this, see cycling in Luxembourg.
Who is Steinsel for?
Anyone who prefers a walk with history to a museum full of glass cases. Nothing visitguttland describes here involves ticket desks or opening times, just open-air Roman remains, a vast forest and a riverside cycle path. With older children, the Grünewald trail and its mysterious place names will hold their attention better than an exhibition hall. If you’re after spectacular monuments, Vianden or the Mullerthal will suit you better.
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How I’d do it
I’d leave Luxembourg City in the morning, either on the Alzette cycle path or on public transport, which is free. I’d see the Roman sanctuary, walk for an hour on the Grünewald trail and, if there’s time, drop down to Walferdange for the Raschpëtzer. It’s a half-day plan that shows a very different Luxembourg from the Ville Haute.
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What's in Steinsel
| Place | What it is | Detail |
|---|---|---|
| Roman sanctuary | Central temple and excavated buildings | Late 1st century; peak in the 4th |
| Roman baths | Remains beneath the church square | Not listed as open to visitors |
| Grünewald forest | Country's largest continuous forest | Much of it in the municipality |
| Grünewald heritage trail | Waymarked walk | Legends and named spots |
| Alzette cycle path | Cycle route | Dommeldange to Ettelbruck |
visitguttland, Steinsel page, checked on 29-09-2026.
Test yourself
True or false?
0/3 Pick before you peek.
-
Steinsel's Roman sanctuary was at its height in the 4th century.
See the answer
True. Its central temple dates from the late 1st century and the site peaked in the 4th, according to visitguttland.
-
The Grünewald is a small patch of woodland.
See the answer
False. visitguttland describes it as the most important continuous forest in the country.
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Steinsel has three official localities.
See the answer
True. Heisdorf, Mullendorf and Steinsel, according to the national register of localities.
Map
Where Steinsel is
The thick dashed line is the border with Belgium, France and Germany, and the fine ones divide the twelve cantons. The Éislek lies to the north and the Moselle to the east. Every number opens its guide.
Map data © OpenStreetMap contributors (ODbL)
- 1Valley of the Seven CastlesEisch valley, Mersch to Koerich
- 2GuttlandTourist region of the centre and west
- 3GarnichCanton of Capellen, Guttland region
- 4MerschCanton of Mersch, Guttland
- 5KehlenCanton of Capellen, Guttland region
- 6LintgenCanton of Mersch, 3 localities
- 7KopstalCanton of Capellen, Guttland region
- 8LorentzweilerCanton of Mersch, 7 localities
- 9BissenCanton of Mersch, 2 localities
- 10KoerichCanton of Capellen, Guttland region
- 11SteinfortCanton of Capellen, Guttland region
- 12HabschtCanton of Capellen, Eisch valley
- 13HelperknappCanton of Mersch, Guttland region
- 14MamerCommune in the canton of Capellen, Guttland region
- 15RedangeMain town of the canton of Redange
- 16BeckerichCanton of Redange, 8 localities
- 17EllCanton of Redange, 5 localities
- 18UseldangeCanton of Redange, 4 localities
- 19SaeulCanton of Redange, 5 localities
- 20VichtenCanton of Redange, 2 localities
- 21PréizerdaulCanton of Redange, 4 localities
- 22Groussbus-WalCanton of Redange, merged in 2023
- 23RambrouchCanton of Redange, 17 localities
- 24MertzigCanton of Diekirch, a commune since 1875
- 25SandweilerMunicipality in the canton of Luxembourg, Guttland
- 26WalferdangeMunicipality in the canton of Luxembourg, Guttland
- 27SteinselMunicipality in the canton of Luxembourg, Guttland
- 28NiederanvenMunicipality in the canton of Luxembourg, Guttland
- 29SchuttrangeMunicipality in the canton of Luxembourg, Guttland
- 30ConternMunicipality in the canton of Luxembourg, Guttland
- 31Weiler-la-TourMunicipality in the canton of Luxembourg, Guttland
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Frequently asked questions
Where is Steinsel?
North of Luxembourg City, in the same canton, next to Walferdange. Its localities are Heisdorf, Mullendorf and Steinsel, according to the national register of localities.
What is there to see in Steinsel?
The Roman sanctuary, with four excavated buildings and panels, the Grünewald heritage trail and, for cyclists, the Alzette cycle path between Dommeldange and Ettelbruck.
What is the Grünewald?
A large forest that visitguttland describes as the most important continuous woodland in the country. Much of it lies within Steinsel.
Are there Roman remains in Steinsel?
Yes. A sanctuary with a central temple from the late 1st century, at its height in the 4th, and baths beneath the church square, according to visitguttland.
What is the population of Steinsel?
6,186 on 1 January 2026, according to STATEC, up from 6,018 a year earlier.
By
Tourism graduate with a master’s in Tourism Management and Planning from the University of Málaga, who has travelled across Europe. He writes every guide from official sources and his own judgement.
Published on . Facts checked on .
Sources
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Photos: Cayambe (CC BY-SA 3.0), via Wikimedia Commons.