As the National Park Service approaches its 100th birthday celebration, you can mark the anniversary by looking into the past of the national park movement via original Works Progress Administration posters and more recently made replicas.
Redwoods National Park
Shhhhhhhh! That's the urging at Redwoods National Park in California, where officials intend to ban loud music within 500 feet of old-growth forests during part of the year.
So, are more Americans looking for a vacation in Death Valley National Park than, say, Yellowstone National Park? The folks at Google Maps might have you think so.