10) Sequoia and Kings Canyon National Parks, Southern Sierra Nevada, California
The deafening silence and sheer size of the 1,000-year-old Sequoia trees at these National Parks will make you feel like you are standing among giants. Nestled within the canyons, caverns, and foothills of Sequoia and Kings Canyon National Parks is one of the tallest tree species in the world: the General Sherman. This mammoth design of nature stands a staggering 275 feet tall and is estimated to be 2,500 years old. Other attractions in these neighboring parks include waterfalls, campgrounds, and picturesque views that will open your mind and brighten your great American experience.