the history for the benefit of the future generations.
really very important
choose one, it's either very important or really important.
people who want to explore the world
It's more than just people who want to explore the world.
Okay I love your ending, but your beginning and middle were iffy. When reading it, there wasn't a flow to it. I kept on reading and stopping and having to read it again case I was like "wahhht?"
When stating your reasons for why people should visit museums of that country, don't start off your paragraphs with "the first reason...second reason" the reader will get the clue. Just go right into talking about it.
You should also state how museums are not just for students and tourists, but for every walks of life. They bring the country together and brings a sense of pride to the citizens of that nation because it is a representation of how they came to be you know.
Just take a look again at what you wrote and try to make it flow because it's not cohesive. Other than that, great job :)