Hollenfels

Hollenfels (German pronunciation: [ˈhɔlənfɛls]; Luxembourgish: Huelmes) is a village in the commune of Helperknapp, in western Luxembourg. As of 2025^[update], the village has a population of 541.^[1]

Hollenfels is famous for the huge keep of its imposing medieval castle overlooking the valley below.^[2]