38. Los Caracoles, Chile
Constructed: 2004 (Dam)
Risk Factor: Hairpin turns
Chile’s Paso de las Caracoles (Snail’s Pass, in English) is an extremely steep climb, filled with all sorts of hazards. Caracoles has twenty-nine turns, which you have to take “at a snail’s pace” if you want to survive them. Cars and trucks ascend to thousands of feet above sea level, reaching the border that crosses to Argentina at 10,500 feet
The climb is especially dangerous in winter when snow and ice make Caracoles nearly impossible to drive. Don’t count out summer though. In the summer, heavily-laden trucks’ brakes and engines are punished by extreme, brutal heat. Better hope your air conditioning is in peak condition if you take Caracoles in the summer.