Mount Washington, New Hampshire: Infamous for extreme weather and challenging ascents.
Pikes Peak, Colorado: High-altitude roads with steep gradients and sharp turns.
Tail of the Dragon, North Carolina-Tennessee: Renowned for its numerous twists and turns.
Beartooth Highway, Montana-Wyoming: High elevation with challenging weather conditions.
Going-to-the-Sun Road, Montana: Winding paths through Glacier National Park with varying weather.
Cherohala Skyway, North Carolina-Tennessee: Elevated route with hairpin turns and stunning views.
Million Dollar Highway, Colorado: Precipitous drops and hairpin turns at high elevations.
Mauna Kea Access Road, Hawaii: High-altitude ascent with steep grades.
Mount Evans Scenic Byway, Colorado: High-altitude route with challenging terrain.
Cottonwood Pass, Colorado: Remote and challenging pass with unpaved sections.