A UNESCO World Heritage Site
The historic century old Kalka Shimla Railway line opened for public traffic on 9 th November 1903, is a UNESCO World Heritage site. This railway line was conferred heritage status on 10 th July 2008 and listed under "Mountain Railways of India". Kalka Shimla Railway is amongst the first and still outstanding example of Hill passenger railway. Opened in 1903, it applied bold and ingenious engineering solutions to the problem of establishing an effective rail link across a mountainous terrain of great beauty. It is still fully operational and considering its significant engineering of 19 th century with numerous multi arch galleries and tunnels over a long length of 96.60 kilometers, it is easily the most outstanding railway in the world in terms of authenticity and engineering. "The Guinness book of rail facts and feats" records Kalka Shimla Railway as the 'Greatest Narrow Gauge Engineering' in India. It is indeed true, construction of 103 tunnels (102 existing) aggregating 5 miles and over 800 bridges in 4 years with great technical skills in harmony with nature that too in rough and hostile terrains was not an easy task.
