'Belle-Vue' means beautiful view.
Rue Belle-Vue in Limpertsberg was called Piffkaul in Luxembourgish. The Jewish cemetery at its corner with Rue des Cerisiers is officially called Cimetière Belle-Vue, and Schlass Belle-Vue, also on Rue des Cerisiers, bears the name too. We have not yet found out which view gave the name, or whether the street, the cemetery or the Schlass carried it first.