Mount Pilatus (http://www.pilatus.ch/)
Mount Rigi (http://www.rigi.ch)
Guides Lucerne (http://www.guidelucerne.c...)
LucerneGuide (http://www.lucerneguide.ch)
Mount Titlis
Schwyz
Zug
Felsenweg at Mount Bürgenstock, not very tall, but you get a beautiful view over the Mittelland and its lakes, best in the morning or evening after rainfall; go there by boat Lucerne-Kehrsiten and funiculaire or 1.5h walk, by train and bus Lucerne-Stansstad-Bürgenstock, by bicycle 1.5h up and 0.5h back ;)
Mount Lopper, not touristic, but also beautiful view, also best in the morning or evening, only a very short trip from Lucerne; by train to Stansstad 15min, walk back over the bridge and up to the white chapell, follow this only way, always direction west direction Pilatus, after 1.5h you'll get to a lookout, follow the way, at the crossing you go down to Hergiswil and by train back to Lucerne 10min