Badaling is the best preserved and most popular section of the great wall. It is the first part of the great wall open for tourists. We should admit that it is the most splendid part of the great wall. But if you want to visit some more orginal part, I would recommend the Jinshanling and Simatai sections for you. I should remind you that these two sections are almost dilapidated and very dangerous to hike through. You have to take your physical condition and safety into consideration.