El Capitan in Yosemite National Park (California) glows at sunset. This effect is known as alpenglow, and it commonly occurs Yosemite during the winter months. iPhone photo by Kari Cobb.
Sunset View of the Continental Divide, Glacier National Park, Montana. Been there and it is this beautiful!
Well of Secrets, Zion National Park, UT by Shane McDermott
Hiking the Narrows at Zion National Park. One of the coolest National Parks out west.
Vernal Falls. Yosemite National Park, California.
Olympic Nemzeti Park
Yellowstone National Park "Fire" Waterfall by B-Cause, via Flickr
Mammoth Hot Springs Geyser, Yellowstone National Park, Wyoming; photo by Marcie Gonzalez
Kalbarri National Park, Australia
Subway pools | Utah Zion National Park