Luxembourg City, a capital built on a fortress

Luxembourg City looks like no other small European capital because war drew its outline. For centuries it was a fortress perched on rock, and when the walls came down after 1867 what was left was a city on two floors, with squares on top and river quarters below, stitched together by stairs, bridges and lifts. Here’s how I’d tackle it.

Why it sits where it does

It all starts with the Bock, a rock ringed on three sides by the Alzette valley and reachable only from the west. In 963 Count Sigefroi obtained it from the abbey of St Maximin in Trier and built a small castle, «Lucilinburhuc», which gave the country its name. A town grew around it, and the Burgundians, the Spanish Habsburgs, the French, the Austrians and the Prussians strengthened it so often that it earned the nickname Gibraltar of the North.

The Treaty of London in 1867 ordered the fortress dismantled, and much of it went. What survives, together with the old quarters, joined the World Heritage list in 1994. I find that the best way to read the place, a city that took off its armour but left the skeleton on show. I tell the full story in my guide to Luxembourg fortress.

The upper town, the top floor

The old town sits on the plateau and you can walk all of it in a morning. The Luxembourg old town is framed by three squares. Place Guillaume II, home to the Hôtel de Ville and the tourist office; Place d’Armes, with its bandstand and café tables; and Place de la Constitution, where the golden figure of the Gëlle Fra gazes across the Pétrusse valley. The Grand Ducal Palace and Notre-Dame Cathedral lie between them, and you’ll have seen the lot in an hour if you skip the museums.

My advice is not to stay up there. The upper town is handsome, but until you reach its edges it’s a town of shops and offices like many others.

Once your dates are set, check which hotels are still free in Luxembourg before prices climb.

The edges, where the city shows what it was

The Chemin de la Corniche is my favourite spot in the whole capital. It runs along 17th-century ramparts from the Bock to the old citadel, with the Grund at your feet. At the start are the casemates, galleries cut into the rock that were part of a 23 km network and which the city tourist office now shows with a guide.

From the Corniche you drop down into the Grund, the river quarter, with Neumünster Abbey and houses crowding the Alzette. You can then follow the river to the Pfaffenthal and ride the panoramic lift back up, free and running from 5:45 to 1:00. That loop, up, down and up again, is what makes sense of the city.

What I’d pay for and what I wouldn’t

Almost everything worth doing here is free. Walking, crossing the Adolphe Bridge or stepping into the cathedral costs nothing, and neither does public transport since 1 March 2020, for residents and visitors alike. Where I’d spend is the Bock casemates, €20 with a guide as of September 2026, because it’s the only way into the rock.

The Grand Ducal Palace opens only in summer and tickets go fast. In 2026 they sold out, and the 2027 dates haven’t been announced. I’d treat it as a treat if it fits your trip, not a reason to pick your dates. The Pétrusse casemates, at €24, I’d save for a second visit or for anyone who has already done the Bock.

Once your dates are set, check which hotels are still free in Luxembourg before prices climb.

How long should you give it?

A day covers the old town, the Corniche and the Grund without rushing, and I’ve laid it out hour by hour in Luxembourg in one day. Two days let you add the casemates at leisure, Kirchberg, the European quarter of towers and museums across the valley, and an afternoon in a gallery.

For a bed, the upper town or the station area is the most practical, with the tram at the door. I go through the options in hotels in Luxembourg City centre. If you fly in, the T1 tram reaches the centre from the airport without a change and without a ticket.

The practical bits

The city tourist office sits on Place Guillaume II itself and opens every day except New Year’s Day and Christmas Day, with shorter hours on Sundays. That’s where you book the casemates and the palace. The city covers 51.73 km² and has 24 official districts, though visitors rarely leave five or six of them. Trier is 48 km away and Metz 60, so the capital also works as a base for a hop over the border. British travellers arrive from outside Schengen, which means registering with the EES biometric system at the first border they cross into the area.

If you would rather have a local show you round, book a guided tour in Luxembourg and choose by the reviews.

A car frees you from timetables: search car hire in Luxembourg on DiscoverCars and compare companies.

So you do not pay over the odds, look at trains, coaches and flights to Luxembourg on Omio and pick the one that suits you.