World has own nature differences face and their destination compass. It could be yours destination where you see world highest peak. If you can touch to it and feel your heart Nepal has world highest earth and known as Birth place of Lord Buddha then why not say World Famous Destination as well as Famous Trekking in Nepal.
There is some place to hike around kathmandu if you have a spare day. Thi hikng called Chandragiri hiking. This is a day hike but you can do it a camp night as well as short & easy trekking in Nepal.