2. Clingman’s Dome
Location: Great Smoky Mountains National Park, Tennessee
Elevation: 6,643 ft / 2,024 m
On a clear day, you can see up to 100 miles. Isn’t that spectacular? No wonder Clingman’s Dome is most visited US State high-point in the most visited US National Park. There are lots of trails to pick, and actually, the easiest ones are the least popular, so perhaps this is the best place to check your stamina without possible dangers.