Buddism is the second religion in Nepal. Buddhist temples (gompas) in Nepal are slightly less formal than the Hindu temples.It is important that if you visit a Buddhist Stupa during your visit in Nepal that you familiarise yourself with temple etiquette prior to entering. This is essential if you are to avoid offence and make the most of your visit.
You should always ask permission prior to entering a stupa in Nepal and you will often find that there is a caretaker on hand. The caretaker is the best person to ask if possible. There are some temples in Nepal which prohibit entry to non Hindus / Buddhists however and hence, requesting entry to the temple will be to no avail. You will see charming colour-golden temples. Bouddhanath, Syambhunath, Peace stupa-Pokhara, Golden Temple and many more buddhist temple in Nepal. Almost most of the people of Nepal belives on Buddishm after Hindu. Stupa and Gumbas are well maintained. Your feeling will be changed once you visit there.