I am looking for short documentaries of various places, cultural events, historical sites of Nepal for a presentation....-like a 4-5 mins video on a topic.

Can anyone suggest where I can find these. and  if you have these can you share these with me. 

Yeh! google it or search it in youtube can be nice answers, but you see, I need a collection of these and I am looking for a website which has such collection.

Thanks in advance.