"The Great Wall impresses everyone ... forts that were another part of China’s defenses. The 16th-century Yaoziyu Fort, for example, is the best preserved of Huanghuacheng’s six forts.

Just north of Beijing, you'll find one of the most famous monuments in the world: the Great Wall of China. Although ... Jinshanling, Huanghuacheng, Jiankou and Gubeikou sections offer adventurous ...