The United State has some spectacular national parks. We have been fortunate to visit many of them: Grand Canyon NP, Yellowstone NP, Grand Teton NP, Canyonlands NP, Arches NP, Yosemite NP, Glacier NP and many others.
So, why am I making special mention of Sequoia National Park? This park is well down the list in terms of the number of annual visitors among national parks. Perhaps it is overshadowed by Yosemite NP which is a little further north along the Sierras and is in the top 5 most visited parks.
https://coopsecondact.com/2017/09/22/sequoia-national-park/

Certainly, all of those other national parks have beautiful scenery and marvelous natural wonders and deserve every bit of the attention they get from the thousands of people that visit them every year. The reason I wanted to highlight Sequoia NP is that when you stand next to one of these trees you will be changed forever. They are so magnificent and impossibly massive, you just have to consider your place in the world and how simply wonderful it is that these giants exist.