Hello !
(sorry for that I write in English, but my German is very poor)
In the last few years I cycled all of the paved climbs going above 2000 m in the Alps & Pyrenees.
(List:
http://gyorgyigabor.hu/GYG_osszes_hago.php )
Now there is more than 120 videos of climbs I cycled by my touring bike.
I edited a best of video about my bicycletour that I had this summer in the Alps (1828 kms + 39441 m ) . This video contains not all of the climbs that I cycled but the most beautiful ones or most memorable ones. The following clmbs can be seen for few dozen seconds or for a minute:
Passo Mortirlo, Gavia, Umbrail, Passo dello Stelvio , Forcola di Livigno , Passo dello Spluga , Juf , Oberalppass , Sustenpass (in rain + 3 degrees Celsius) , Triftalp ( 2090 m) , Moosalp (Stalden side along the vertical rockwall ) , Simplonpass , Colle Fauniera (partly above clouds) , Usseglio - Alpe Bessanetto climb (with chamois !!! ) , Col des Gondrans, La Bergerie du Bois Noir (2009 m), Col du Granon, Sestriere
4-6 of these climbs can be valued as being between the ost wonderful ascents of the Alps (Stelvio, Gavia, Triftalp (Susten - I cycled it in rain

), Colle Fauniera & Granon )
Have pleasure with the video !
(In few months time I plan to write a travelogue too)
/ I started a facebook page (
https://www.facebook.com/cycling.high - with posts in Hungarian & in English ) where I will post infos, photos, videos about my tours, experiences (more than 30.000 kms in the Alps, Pyrenées, canary islands & Andalucia) ... about cycling high .. and plan an article or list / collection about the most wonderful paved climbs (finishing above 2000 m) of the Alps, Pyrenées, Canary islands & Andalucia (I haven't visited there Calar Alto 2 years ago I had not enough time for that)
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For your question:
because of the TdF I suggest to visit few ascents of the French Alps.
The most wonderful / or good ones:
Bonette, Col d'Izoard, Col du Galibier, Alpe d'Huez , Col du Granon , Col de l'Iseran, Plan du Lac (hardly known ascent, but you can find a video in my collection ) , in Italy Colle fauniera, Colle Nivolet (2612 m)...
Best regards,
Gábor