As Switzerland is one of my favorite countries, I have visited this area several times from 1989-2008. The city is mostly developed and building are historic, so not much has changed visually over those 20 years except technology items. The photos are are from the most recent visit only.
Geneva is most known for its premium watch brands, luxury lakefront hotel, famous fountain, and also great Swiss-French dishes such as the cheese fondue. It also hosts a large city-wide carnival/fair known as the Fetes de Geneve, usually lasting a week or so in August. I have many fond memories of that over the years.