by Beata Loyfman-Santora

President Obama brought his girls and the Mrs. to visit Grand Canyon National Park this past week. The September issue of Condé Nast Traveler has a feature on the National Parks. Coincidence? We think not. (Someone on the prez's efficient staff probably sneaked an advance copy out of our offices in the middle of the night.)

One thing's for sure: Seeing at least one of the 58 National Parks is a must for every citizen. The mountains of Yellowstone and Glacier, the wildlife in Denali--all of these are fascinating trips that won't burn a hole in your bank account. In fact, a good many parks, and other National Parks Service sites, are free to enter.

So pack the car with some snacks, and make like the Obamas. Then you can ace our nifty National Parks Quiz and feel superior to (and more patriotic than) your friends.

Further reading:
* Boldface: Celebrity travels