Encircled by mountains, along the Mekong river,Luang Prabang is the Lao city with the highest number of temples. Since 1995, Luang Prabang is an Unesco's World Heritage site.
It takes more than 7 hours by bus to reach Luang Prabang from Vang Vieng... and all the way is up/down from mountains..
In spite of the tremendous number of tourists, Luang Prabang is still a peaceful and relaxing place. "Do not rush!"