Jun-Sep: Mon-Fri 9.30am‑6.30pm, Sat 9.30am‑5pm, Sun and Bank Hols noon-6.30pm; Oct-May: Mon-Sat 10am-5.30pm, Sun and Bank Hols noon‑5.30pm - closed 1 Jan
A Protestant church since 1536, this huge edifice built in the 12C and 13C has been modified several times, acquiring a somewhat unexpected Neo-Classical façade in the 18C. Look out for Calvin's seat in the imposing, sober interior. From the North Tower, there is a superb panorama over Geneva, the lake, the Jura and the Alps. The cathedral's archaeological crypt (in the basement) represents 2,000 years of history.