Pokhara is the only such amazing city where you stand on the level of around 1000 meters from sea level to over 8000 meters tall mountains!!!
Kathmandu valley is jewelled with three ancient cities- Bhaktapur, Patan and Kathmandu itself. They were different kingdoms till 1768 AD. This medieval period in Kathmandu is known as the Golden period.
If you are taking a family tour in Nepal take a cultural tour in historic places, accommodation in naturally- awe- inspiring hill stations, rafting, boating, paragliding and elephant riding etc.