National Park

The Milky Way over Capitol Reef National Park in Utah

(© Dave Lane/NASA)More

Visitors in Yellowstone National Park

(© Jason Savage/Tandem Stills + Motion)More

Long Pine Key in Everglades National Park, Florida

(© Tandem Stills + Motion)More

A road to Arenal Volcano National Park in Costa Rica

(© Stefano Amantini/Corbis)More

Climbers ascend Mount McKinley in Denali National Park and Preserve, Alaska

(© Luke Humphrey)More

Black-tailed prairie dogs in Wind Cave National Park, South Dakota

(© James Hager/age fotostock)More

The Colorado River and Marble Canyon, Grand Canyon National Park, Arizona

(© Gavin Heffernan/Shutterstock)More

Hoh Rainforest, Olympic National Park, Washington

(© ARCO/P Frischknecht/age fotostock)More

North American beaver in Denali National Park and Preserve, Alaska

(© Yva Momatiuk & John Eastcott/Corbis)More

Petrified wood in the Petrified Forest National Park, Arizona

(© Ian Shive/Tandem Stills + Motion)More