Until the British reign, tourism in Himachal Pradesh was very limited to a few places around the hills and some spiritual destinations. The British developed hill stations during their reign one of them being Shimla which they called The Summer Capital of India. After the British rule, tourism in Himachal Pradesh was on the rise with the highest number of tourists in the mid 1980s and 1990s. Shimla, the state capital, is popular among tourists. The Kalka-Shimla Railway is a mountain railway which is a UNESCO World Heritage Site. Shimla is also a skiing attraction in India. Other hill stations include Manali, Kinnuar, Kasol, Parvati Valley, Chamba, Kullu, Kinnar Kailesh, and Kasauli.