The Kalka�Shimla Railway is a 2 ft 6 in (762�mm) narrow gauge railway in North-West India travelling along a mostly mountainous route from Kalka to Shimla. It is known for breathtaking views of the hills and surrounding villages.
The Kalka�Shimla Railway was built to connect Shimla, the summer capital of India during the British Raj, with the Indian rail system. It was constructed by the Delhi-Ambala-Kalka Railway Company commencing in 1898.
This railway was added to the UNESCO world heritage list in July, 2008.
(source – wikipedia)