Build one good day first
The useful plan is Old Town and Bock first, Corniche and Grund afterward, Kirchberg separately.
- Anchor the day around Bock Casemates or Chemin de la Corniche.
- Keep Pfaffenthal lift for the right weather and timing.
The best things to do in Luxembourg are not just a list of names. They need order, weather sense, and a landing point. I would start with the anchor that defines the day, then add food, shopping, or a quieter area only when it helps the rhythm.
The practical rule is simple: Old Town and Bock first, Corniche and Grund afterward, Kirchberg separately. That keeps the day grounded instead of making it feel like a loose checklist.