Exclusive Edition - The Ultimate Field Guide to Photography: Buy Now!
Home
Animals
Daily News
Environment
Games
Green Guide
History
Kids
Maps
Music
Photography
Science & Space
Travel & Cultures
Video
National Geographic Channel
Magazines
National Geographic
Traveler
Adventure
Shop
Subscriptions
TV & Film
Travel With Us
Our Mission
Visit our Online Shops
Books & Atlases
Clothing & Accessories
DVDs
Maps
Catalog Quick Shop

Sign up for free

Newsletters

Once a month
get new photos
and expert tips.

Sign up

Denali Highway, Alaska
Photo: Rainbow over road
WALLPAPER

A rainbow stretches over a section of the 670-mile-long (1,100-kilometer-long) Denali Highway in Alaska. Rainbows are a simple, ordered display of visible light reflected off of water droplets in the atmosphere.

Photograph by Rich Reid

Related Features
Photo: Yellow fish surrounded by red coral

Life in Color: Red

Photo: Woman with yellow scarf

Life in Color: Yellow

Photo: Two tree frogs staring nose-to-nose

Life in Color: Green

Photo: Sunset and bridge

Life in Color: Purple

Special Advertising Section
Photo: Horses and old barn

Enter Sweepstakes

Take a photographic journey through Montana and enter for a chance to win a trip for two!

Enter Now
Photo: Glass of water

Take Quiz

Eighteen percent of the world's population can't get safe drinking water. Test your water knowledge.

Learn More

Photo Tip of the Week

Long Exposures

When making long exposures, use a remote release to avoid camera movement. If you don't have a remote release, use the camera's self-timer.

More Photo Tips

The Complete National Geographic
Photo: The Complete National Geographic product

Explore 120 years of amazing discoveries, fascinating maps, and the world's best photography.

Shop Now

Photography Guides
Photo: Ultimate Field Guide book cover

Guides by National Geographic photographers.

Buy Guides

The National Geographic Image Collection Book
Photo: The Image Collection book cover

Own images from one of the finest and most extensive image collections on Earth.

Shop Now