World's Scariest Roads
Wilderness Road to Selva Blue Lodge, Bolivia
Location: Between Santa Ana and the Selva Blue wilderness lodge
Fear factor: The route, a 100-mile jungle labyrinth, is a 20-foot-wide gravel track that shrinks to a grassy two-track and crosses log bridges over rushing Amazonia tributaries. The Caravana motorcycle festival chose this often-flooded route through the Amazon Basin of northern Bolivia in 2002.