The train crosses the Pamban Bridge, which spans over the sea and is vulnerable to high winds and storms.
This was built during WWII by prisoners of war in treacherous jungle terrain, with many dying during construction. The narrow cliffside tracks and wooden trestle bridges still make it a white-knuckle ride.
It zigzags up and down a nearly vertical cliff with sharp switchbacks.
The track was built during the Klondike Gold Rush, it navigates snow-covered peaks, steep inclines, and narrow tracks.
The Georgetown Loop Railroad is located in the Rocky Mountains in Clear Creek County. This is a narrow-gauge track with high trestle bridges and steep mountain grades.
Kuranda Scenic Railway provides the experience of travelling through dense rainforests and over unstable terrain with landslide risks.
The Argo Gede train route in Indonesia is famous for its stunning views of deep subtropical valleys and a dangerous section that crosses a towering bridge. (Image: Freepik)