United Kingdom
ExpertSnowdonia Slate Quarry Circuit
Welsh slate miners' roads in Snowdon's brutal shadow
Trail Type: Technical 4x4
Switzerland
ExpertBeartooth Highway Extension
Swiss Alpine pass linking at extreme elevation
Romania
ExpertTrans Euro Trail Eastern Romania Section
Eastern Carpathian wilderness challenge
Alba
DifficultCarpathian Logging Roads Apuseni Mountains Circuit
Communist logging roads through limestone peaks
Andalusia
ModerateRuta de los Pueblos Blancos Sierra de Grazalema Circuit
Roman roads linking Andalusian white villages
Romania
ExpertFogaras Mountains High Ridge Military Road
Cold War military ridge above the clouds
Germany
ModerateRallye Deutschland Eifel Forest Circuit
WRC forestry roads through volcanic Eifel hills
Bulgaria
DifficultRila Mountain Military Circuit
Secret military roads to the Balkans' highest peak
Italy
ModerateStrada delle 52 Gallerie (Road of 52 Tunnels)
WWI military road through 52 hand-carved tunnels
Italy
ExpertStella Alpina Military Road Circuit
WWI fortifications meet extreme alpine 4x4 challenges