Killer whales break the water's surface of Glacier Bay in Alaska. Also known as orcas, these marine mammals often use echolocation to find their prey, which usually consists of fish and squid.
(Photograph shot on assignment for, but not published in, "Risk and Reward on Alaska's Violent Gulf," February 1979, National Geographic magazine)
There are 58 national parks in the U.S., as varied as the country that houses them. We've gathered everything you need to know to set off for a summer adventure, plus photo galleries, quizzes, maps, and more.
Merry-go-rounds, deep-fried corndogs and high-flying Ferris wheels mark the start of state fair season. Submit your best summer fair pictures to the newest category of My Shot and view photos from other fairs across the country.
The desolate beauty of Alaska's Seward Highway offers the chance to explore nature uninhibited by human influence. Whales, waterfalls, glaciers and ocean fjords all await travelers of this remote locale.
