To celebrate its 99th birthday, you get a present of free entry on Tuesday, Aug. 25, at all national parks.
"On Aug. 25, 1916, President Woodrow Wilson signed legislation to create the National Park Service. Today, there are 408 national parks throughout the country and each one tells an important part of the American story," says Mary Plumb, a national park spokeswoman.
"Some commemorate notable people and achievements, others conserve magnificent landscapes and natural wonders, and all provide a place to have fun and learn. And, on August 25, all national parks will offer free entrance for everyone."