From Acadia to Yellowstone, here’s the official list of all the national parks in the United States.

These adventure havens arent just about beauty, though.

The idea to protect public lands came to fruition in 1872, whenYellowstonebecame the countrys first national park.

Grand Teton Mountains at dusk

Grand Teton Mountain range during spring.Credit:Irjaliina Paavonpera / Travel + Leisure

Favorites like Sequoia,Yosemite,Crater Lake, andGlaciernational parks followed soon after.

Many demographics, includingseniors, can enjoy reduced pass rates.

Thunder hole in Acadia, Park Loop Road, Acadia National Park, Maine

Thunder hole in Acadia National Park.Getty Images

A scenic view of rolling hills and forests in a national park, with sunlight breaking through clouds

Mountains in Shenandoah National Park.Jon Mattrisch/Travel + Leisure

Hikers in Badlands National Park

Hikers in Badlands National Park.Don Eim/Travel + Leisure

Grand Canyon at dusk

Red rock cliffs of the Grand Canyon at dusk.Lauren Breedlove / Travel + Leisure

Bryce Canyon

Bryce Canyon National Park in Utah.Vince Fergus / Travel + Leisure

Snowy glacier and ice filled water

Ice filled waters along Glacier Bay National Park.Taylor McIntyre / Travel + Leisure