To me, National parks in United States are unparalleled in beauty and magnificence. To leave such precious and vast open spaces of nature to our children and to future generations is not just important, it is absolutely necessary. To preserve and protect not just the nature, but the animals, the ideology and the history should be one of the highest priorities to all of us, as human beings. I have been to Yellowstone 3 times and every time I discover and learn more about this place.