Secret Kingdom : Upper Mustang trek in Nepal

Trekking in Nepal differs with scenic perspective like green hills till 4000 meters, brown hills or lets say dessert till 5000 meters to White snow above 5000 meters. Upper mustang trek in Nepal does offer dessert scenery and Tibetan cultural heritage. Many people call it as a lost kingdom, forbidden kingdom, hidden kingdom and so on. This is definitely the unique place to visit which brings back to memory of medieval time.