North Cascades National Park boasts an extensive network of trails, each with its own unique charm and breathtaking vistas.

Though Pinnacles National Park is renowned for its geology and its testing grounds for climbers, it's a great place to go in search of California condors.

In Tennessee, Great Smokey Mountains National Park harbors a one-way road in bucolic Cades Cove. Its 11-mile paved loop is loaded with scenery, historical sites, and wildlife. But we’d heard about the cove’s famed car jams due to around two million annual visitors: lines of vehicles inching slowly along the road and parking lot congestion that prevented stopping at sites. Clearly, the car approach did not appeal to my sister or me!

Death Valley National Park covers much more acreage than just the valley itself. It’s the largest U.S. national park outside of Alaska at 3,422,024 acres. With a park that size, you probably aren’t going to see everything you want in the space of a day or a week, for that matter. But you can still see and do plenty, even if you have no more than three days.