Bellagio - A picturesque town located where the three legs of Lake Como come together. Very attractive town at the junction of the two 'legs' of the lake. Can be expensive. This is the busiest of the tourist oriented towns. Bellagio is a hub for the boat service on the lake.
Nesso - a very small town on the shores of Lake Como. It is about halfway between the city of Como and Bellagio. A very small town about half way between Como and Bellagio on the western "leg" of the lake.
Como - At the southern end of the lake, the lake's main town is a good base and although not as attractive as some of the other towns, it remains an elegant resort. The town has a population of roughly 80,000 people. And has Roman or pre Roman origins.
Tremezzo - Beautiful little town, right across from Bellagio. Main attraction is Villa Carlotta with its splendid botanical garden and nice waterfront.
Menaggio - The main town on the Western Shore, it's an attractive town and not as touristy. as Bellagio and Varenna opposite. It has a Youth Hostel (but it's often full at weekends). Has a nice pedestrian only area with coffee shops, gelaterias and restaurants. Also has a lake-front mini golf with a snack bar.
Como is dominated by the famous tri-legged lake of the same name. This superb blue finger lake is framed by green mountains with higher peaks further north in the alps. Life in the region in Como is centered on the lake
Italian and Lombard (in its western variant, that is)