Ken, Phil and I went around Austria / Switzerland in 2014 and i fell in love with the roads, food and views down there. We have plans to return and to support this i have researched quite a few of the surrounding routes. Here was the list of roads i had penciled in as candidates. Hope it helps.
1. http://www.dangerous...alm-straße.html
2. http://www.dangerous...ad-austria.html
3. http://www.dangerous...-austria-2.html
4. http://www.dangerous...ad-austria.html and http://www.dangerous...ier-tunnel.html
5. http://www.dangerous...ramastraße.html
6. http://www.dangerous...se-germany.html
7. http://www.dangerous...acher-höhe.html
8. http://www.dangerous...tai-saddle.html
9. http://www.dangerous...lexen-pass.html
10. http://www.dangerous...sfeld-pass.html
11. http://www.dangerous...öhenstraße.html
12. http://www.dangerous...acier-road.html
13. http://www.dangerous...lberg-pass.html
14. http://www.dangerous...-furkajoch.html
15. http://www.dangerous...ad-austria.html
16. http://www.dangerous...hntennjoch.html
17. http://www.dangerous...isentalalm.html and http://www.dangerous...almstrasse.html
18. http://www.dangerous...chtannberg.html
19. http://www.dangerous...witzerland.html
20. http://www.dangerous...witzerland.html
21. http://www.dangerous...witzerland.html
22. http://www.dangerous...imsel-pass.html
23. http://www.dangerous...witzerland.html
24. http://www.dangerous...usten-pass.html
25. http://www.dangerous...witzerland.html
26. To walk http://www.dangerous...witzerland.html
27. http://www.dangerous...witzerland.html
28. http://www.dangerous...witzerland.html
29. http://www.dangerous...witzerland.html
30. http://www.dangerous...eralp-pass.html
31. http://www.dangerous...witzerland.html
32. http://www.dangerous...ausen-pass.html
33. http://www.dangerous...el-bernina.html
34. http://www.dangerous...ixence-dam.html
35. http://www.dangerous...ielen-pass.html
36. http://www.dangerous...el-sambuco.html
37. http://www.dangerous...-d’emosson.html
38. http://www.dangerous...di-livigno.html
39. http://www.dangerous...ga-italy-2.html
40. http://www.motorbike...dolomites-italy
41. http://www.zainoo.co...-dolomites-road
42. http://www.thegreatd...d-39/index.html
43. http://www.dangerous...lvio-italy.html