The US is home to 61 national parks. With a national park in almost every state (including two outside, American Samoa and the US Virgin Islands), it is safe to say the outdoors is a pretty thing in the country. The US has some of the most gorgeous national parks in the world and many of them are unique.
Crater Lake National Park
Grand Canyon National Park
Grand Teton National Park
Glacier National Park
Yosemite National Park