Pfaffenthal
Staying in Pfaffenthal puts the museum in your own valley. The area is residential and quiet after 8pm, so evenings are the river and the occasional train over the Pulvermühle viaduct rather than bars at the door. Melia Luxembourg is 220 m away, a 3-minute walk, with breakfast in room and air conditioning. Les Jardins d’Anaïs, 310 m and 5 minutes on foot, has air conditioning and free Wifi, while Luxury 2 bedrooms flat and New 2 bedrooms Luxury Flat are both 350 m away, 5 minutes, and wheelchair accessible.
Clausen
Clausen, one gorge over, is the closest thing to a restaurant quarter near the museum and gives you a short walk back into Pfaffenthal. Lago Welcome Clausen II is 390 m from the museum, 6 minutes on foot, with free Wifi; Lago Welcome Clausen I at the same distance has family rooms and free Wifi. Charming Clausen Getaway Serene ID209, 470 m and 7 minutes, is wheelchair accessible, and Lago Welcome Clausen Suite, 510 m and 8 minutes, adds a kitchen and free Wifi.
Kirchberg
Kirchberg is one train stop from Pfaffenthal-Kirchberg station, 3 minutes, which makes it a practical base if you are also working on the plateau. The Youth Hostel Luxembourg City, 380 m from the museum and 6 minutes on foot, has family rooms and free Wifi, and sits close enough to the valley to treat the museum as a walk rather than a trip. Staying up here trades the gorge's evening silence for a fast link back down to the museum and the panoramic lift.