What can one visit in Geneva?

In 1763 Necker fell in love with Madame de Verménou, the widow of a French officer. But while on a visit to Geneva, Madame de Verménou met Suzanne Curchod, the daughter of a pastor near Lausanne, to whom Edward Gibbon had been engaged, and brought her back as her companion to Paris in 1764. There Necker, transferring his love from the widow to the poor Swiss girl, married Suzanne before the end of the year. On April 22, 1766 they had a daughter, Anne Louise Germaine Necker, who became a renowned author under the name of Madame de Staël.