My suggestions + a hardly known epic: Grosser Oscheniksee
Hello !
Grossglockner, Stelvio, Bonette, Alpe d'Huez, Ventoux, Mortirolo, Monte Grappa, Pico Veleta and Roque de los Muchachos (La Palma, - Canary islands) should be sure in the TOP 10 and... the following:
Based on the data of...