I have articles on HuPages that lists all the major Hindu and Buddhist temples in Nepal. However, I am not sure if I am allowed to share my links here. Some of the major temples in Nepal are in Kathmandu, the capital city of Nepal. Some of the important temples in Nepal are Pashupatinath, Swambhunath, Baudhanath, Changunarayana, etc. The oldest historical temple in Nepal is Changunarayana, it is dated 5th century AD.