"Couples who love wide open spaces can head to Theodore Roosevelt National Park, where the Great Plains meet the Badlands. Come nightfall, the park offers an impressive view of the stars — it's possible to spot the Milky Way, the Andromeda Galaxy, and even the Northern Lights in good conditions. During the daytime, make a stop to hike through the naturally colorful Painted Canyon or drive the Theodore Roosevelt Scenic Byway." - Travel + Leisure Editors