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Our adventure begins with the Great Wall of China, an iconic marvel of human engineering that stretches over 13,000 miles. This ancient fortification, built from various materials, winds through obstacles like deserts, mountains, and plateaus, showcasing the tenacity of Chinese civilization. Originally constructed in the 7th century BC, the Great Wall was unified under Emperor Qin Shi Huang, serving as both a military defense and a testament to the collective effort of hundreds of thousands of workers. Today, sections like Badaling and Mutianyu offer accessible exploration, while remote areas like Jiankou provide a more rugged challenge. Standing atop the wall, visitors can experience the echoes of history and the breathtaking views that make it a lasting symbol of strength and unity.