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An area with interesting shops and most importantly, a series of residential buildings called "les Schtroumpfs" (1982-1984), where the architects tried to avoid all straight lines, leading to an unconventional Gaudi-like appearance.
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Worth visiting for the old Tour de L'Ile, the remains of a fortified castle erected in the 13th century.
An impressive monument, constructed in 1873 as a Mausoleum for the Duke of Brunswick, as a replica of the tomb of the Scaligeri family in Verona (14th century). Also worth visiting for the 5-star hotels and the cars in front of them.
Small island where the lake ends and river Rhône begins named after the famous philosopher Jean-Jacques Rousseau - of course there's a statue of him there too.
Vieille Ville
Aside of the cathedral the Old town in general is worth walking around in for an hour or two. Among the highlights are the city hall with the cannons in the little square opposite to it, Rousseau's birth house and various antique shops with all sorts of interesting stuff in the windows. A word of warning to people with physical disabilities: the Old Town, is situated on a hill with quite steep streets leading up to it.
See the impressive Grand Theatre (1879, renovated after a fire in 1951), the Conservatoire de musique, and the Musée Rath. Also visit the Parc des Bastions, which includes a large wall ("Mur des Réformateurs") showing some of the famous people of the Reformation movement.
Translates to the "Pearl of the Lake" and is the largest park on the western bank of Lake Geneva. It hosts the splendid eponymous restaurant and a free science museum, but it also a great place for a picnic.