Key west is especially welcoming to solo travelers. Americans hit the road just to see roadside attractions like the world’s largest ball of twine in kansas, drive through a giant redwood tree in california, discover the thing in arizona and take in the ornate corn. 70 including green lakes state park, ‘akaka falls, and buchanan’s birthplace state park America’s coolest attractions & experiences from washington to florida, some of the united states’ most memorable travel destinations are also the country’s strangest. The most exotic hike in the united states can arguably be found in colorado’s great sand dunes national park.