Source: The Great Interpretation of Dreams (Ibn Sirin)
(By analogy with walls and fortresses) Seeing the Great Wall of China may indicate fortification, strength, and power, or indicate a great matter requiring significant effort to accomplish.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
(By analogy) It may indicate long life, a distant journey, or a huge project.
Source: Signs in the Science of Expressions (Ibn Shaheen)
(By analogy) It is interpreted as strength, power, and protection.