Grandfather Mountain is one of the coolest places in North Carolina. It has hikes up and down cliffs with ladders and cables. It has endemic flora and fauna. You can see 4 states from its summit and on a clear day you can see Charlotte.
One of the most popular spots on Grandfather Mountain is the Mile High Swinging Bridge. It is one mile in elevation, but not that high above the ravine it crosses. The views are great!