No matter which destination you choose, you'll find picturesque landscapes and activities suitable for all ages and interests from deep canyons and vast deserts to crystal exotic bays and dazzling glaciers, North America’s National Parks feature world’s most scenic natural beauties. With so many parks scattered throughout the U.S., finding the locale that's best for your next adventure can seem daunting. Here is the list of Top 10 Must See National Parks in the US 1. Great Smoky Mountains National Park It’s no wonder Great Smoky Mountains National Park is the most-visited park in all of the U.S. Stretching from Tennessee to North Carolina, the park encompasses part of the stunning Blue Ridge Mountains and the famed Appalachian Trail, and boasts one of the largest blocks of deciduous, old growth, temperate forests in the country. Travelers to the park can enjoy 850 miles of trails and unpaved roads winding through mountain peaks ranging from 876 to 6,643-feet