The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east-to-west line across the historical northern borders of China in part to protect the Chinese Empire or its prototypical states against intrusions by various nomadic groups or military incursions by various warlike peoples or forces.
*Great Wall of China: One of the seven wonders of the world, the Great Wall of China is a man-made structure that was constructed over two thousand years ago and took about 100 years to complete. The vastness of this project brings to light the immense capabilities of man.
Tianmen Mountain in is a very popular tourist attraction because of the Glass sky walk, located 4,690 feet above the sea level on the side of the Tianmen Mountain in Zhangjiajie province of China. Walking on this see-through glass is a terrifying and thrilling experience, but definitely not for the faint of heart. YES!