Feel free to contribute with photo and details about each road you're referring to.
1. County Road 42, near Northport in Door County, Wisconsin, USA
2. Clue d’Aiglun, France
3. Grand Pacific Drive - Sydney to Wollongong, Australia
4. Smugglers Notch in Vermont, USA
5. Highway 1, California, approx 10 miles North of Fort Bragg, right near Seaside Beach
6. Roadside view of Mount Cook, New Zealand
7. The Drunk Highway, Santa Fe, New Mexico, USA
8. South Island Road, West Coast, Bora Bora
9. Pacific Coast Highway, California, USA
10. Switchback Highway, Tianmen Mountain National Park, Zhangjiajie, in NorthWestern Hunan Province, China
11. Los Caracoles, Andes Mountains, Chile
12. Hureai Bridge, Hiyoshi dam, Japan
13. Stelvio Pass, Claim to fame, Eastern Alps, Italy.
14. Shimla to the Himalayas road, India
15. Highway 167, California, USA
16. Road on Kangaroo Island on the way to Remarkable Rocks, South Australia
17. Thunersee, Switzerland
18. Seven Mile Bridge, Florida Keys, USA
19. Millau Viaduct, France
20. Faroes Island, Denmark
21. The Atlantic Road, Atlanterhavsveien, Norway
22. Maui's Hana Coast
23. Passo dello Stelvio, Italy
24. Trollstigen, Norway
25. Oberfelben, Salzburg, Austria
26. Oberalp Pass, Swiss Alps connecting the cantons of Graubünden and Uri between Disentis and Andermatt, Switzerland
27. Pienza to Monticchiello in Tuscany, Italy
28. Oak Tree Road, Ireland
29. Lysebotn Road, Lysefjord, Norway
30. Rocky Mountains National Park, USA