The landscape of Mt. Rainier National Park is punctuated by the enormity of the mountain itself -- a 14,000-foot-tall volcano looming over surrounding forests and meadows.
Visit US National Parks for free on Public Lands Day, Sept. 29.
Here's our selection for the most exciting and unusual national park activities on land and sea and even deep underground, including sandboarding, spelunking and more.
Visit Glacier Bay National Park and Preserve, and watch geologic history unfold before your eyes.
Find inner peace on these National Park trails.
It may be one of the most impressive and perfect examples of erosion, but what leaves visitors breathless at its edge is the beauty and wonder that we call the Grand Canyon.
750 feet below the earth in New Mexico.
Surrounded by small villages and dotted with nationally recognized historic buildings and structures, Cuyahoga Valley National Park is a living testament to a near-forgotten era.
While there's nothing scary about Petrified Forest National Park, there is certainly something mysterious and wondrous.
The mists of The Great Smoky Mountains seem to shroud the very secrets of the region's historical tragedies and biological triumphs.
The Florida Everglades is the only subtropical preserve in North America, and its endangerment has placed it at the forefront of a massive restoration movement.
Entering any of Carlsbad Caverns' 113 caves is like entering a larger-than-life sandcastle, where drips of sand have been changed into a twisting structure of peaks and spires.
With more than 2 1/2 million visitors a year, Zion National Park is easily Utah's most visited natural landmark.
In Death Valley National Park, daily temperatures soar, and visitors are not greeted by some of Mother Nature's most intense physical features.
Let Travel Channel be your guide as you discover the statues, monuments and memorials that make up Washington D.C.'s iconic national parks.
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