or what is your personal favorite?
mine has to be Transfăgărășan (say it with me

) in the Southern Carpathians in my dear old country Romania. Thank you communism for coming up with crazy ideas and not thinking twice about doing them!
wikipedia:
https://en.wikipedia.org/wiki/Transf%C4%83g%C4%83r%C4%83%C8%99an
some more spaghetti photos:
https://www.google.com/search?q=transfagarasan&es_sm=122&biw=1920&bih=995&source=lnms&tbm=isch&sa=X&ei=ZpORVfunEMvjsAXAx6mYBA&ved=0CAcQ_AUoAQ
only opened a few months a year because during winter its covered in meters of snow, you're lucky if you get to experience it. took a Golf GTI there once (better to bring a turbo'ed car to the game due to the extra thin air). only me and a Mercedes-Benz SLS AMG on it that lucky evening. quite the experience as at the wrong time traffic will ruin it! this road replicates a lot of famous race track turns and the best part is you have complete visibility in every turn!
an interesting fact:
In September 2009 the cast and crew of the British television show Top Gear were seen filming along the road.[4] The segment appeared in the first episode of Series 14 which first aired November 15, 2009. They were in the country on a grand tour with an Aston Martin DBS V12 Volante, a Ferrari California T and a Lamborghini Gallardo LP560-4 Spyder. Host Jeremy Clarkson went on to declare the Transfăgărășan as "the best road in the world" – a title that the presenters previously gave to the Stelvio Pass in Italy.
pretty proud day to be Romanian