“toy” train, to Shimla from Kalka.

In 1903, the British completed a narrow-gauge railway, whose diminutive locomotive led to its being called the “toy” train, to Shimla from Kalka. The UNESCO -recognized train route passes through 102 tunnels and crosses over 850 bridges. Before its advent, visitors had to travel the 69 kilometers from Kalka along a bridle path in two-wheeled carts pulled by pairs of ponies.