Even with the current Arena layout, the original circuit still exists
My votes
5pts: El Capitan (O)
4pts: Circuit de Spa-Francorchamps (W)
3pts: Midfield Raceway (O)
2pts: Apricot Hill Raceway (O)
1pt: Korean International Circuit (W)
Spa
Circuit Gilles Villeneuve
Davos to Stelvio via Bormio (Top Gear Best Driving Roads)
Stelvio Pass (Top Gear Best Driving Roads)
San Bernardino Pass (Top Gear Best Driving Roads)
All are RW.
TG Best Driving Road Reference: here.
Or check out youtube