Seein parts of the world

Having been to several countries on holidays it makes one want to see more and more of what the world has to offer. Apart from everything else it does broadens the mind to see how others live and their surroundings.
There are so many other places I would like to see the list is endless but high up on it is to see the northern lights and to video it . Not done Norwegian Fiords or going the other way a trip down the Amazon- Missippii- Yangtze Rivers.

So where is a must or want to see for other members