Phou Si - Luang Prabang

Mount Phou Si, also written Mount Phu Si, is a 100m high hill in the center of the old town of Luang Prabang. It lies in the heart of the old town peninsula and is bordered on one side by the Mekong River and on the other side by the Nam Khan River. The hill is a local religious site, and houses several Buddhist shrines.

Halfway up the hill, overlooking the Nam Khan is Wat Tham Phou Si, a Buddhist temple built in 1804. At the summit of the hill, overlooking the town and surrounding countryside, is Wat Chom Si, which is also a Buddhist temple and is a tourist highlight of Luang Prabang.

You can take the stairway directly opposite the main gate of the Royal Palace Museum and must pay an entrance fee of about $2. This "stairway to heaven" takes you straight to the temple at the top, where there are a wonderful panorama of Luang Prabang and the Nam Khan River. From the top, you can descend down the backside route, which takes through a zigzag of stairs, Buddhist statues and relics all the way down to the bottom.  

Source, Images: http://en.wikipedia.org/wiki/Phou_si