I would recommend Nepal

Holding to ten of the world's 14 highest mountains. Nepal is the best selection for those who would like to experience once in a lifetime adventures.Country offers a magnificent setting for hiking and mountaineering.
Everyone one knows about Lord Gautam Buddha. He is home lies in center north part of Nepal. One of hte ancient and hold place for pilgrimage.
Vast Diversity and Religious Culture makes Nepal unique. Almost 29 different language can be spoken. Can you believe that 29 language in such small Country.
It's one of the cheap place to explore.