The World's Scariest Train Rides
Courtesy of Minami Aso Railways
Minami Aso Railways, Japan
The Ride: The soaring (and occasionally smoking) peak of Mount Aso—Japan’s most active volcano—looms beside the track of this route through the southerly region of Kumamoto. Primarily a sightseeing ride for spring and summer visitors, the journey is even more arresting in early November, when the mountain’s forested foothills are ablaze in magma-hot colors.
Insider Tip: Minami Aso runs with just three cars, each carrying up to 133 passengers. If it gets cramped, detach one of the windows—fresh air does a body good at any earthly altitude.