The Vauban Circular Walk, named after the French fortress builder Sébastien le Prestre de Vauban (1633-1707), leads the visitor through one part of the fortifications of the 17th, 18th and 19th centuries. Guided visits for groups up to 25 people on request. Circular walk also accessible without guide.
https://www.visitluxembourg.com/en/place/misc/circular-walk-vauban-luxembourg