Brian Kendall’s greatest climbs are split between France and Italy: Alpe d’Huez, Mont Ventoux, Col dy Tourmalet, Col d’Aubisque in France and Passo Stelvio (I can recommend an excellent hotel for this climb), and Monte Zoncolan in Italy. Click on the link to learn more and see some beautiful (and painful) images.
http://www.active.com/cycling/articles/cycling-s-greatest-climbs