A crescent Venus as seen in ultraviolet light by the Hubble Space Telescope. JPL. Back when Earth was very young, our home world was steadily pummeled by large solar system debris. While Earth withstood the barrage of hits like a prizefighter that wouldn't fall down, one blow nearly destroyed the world.
10 Legends and Stories of the Great Wall of China (1). The majestic Great Wall was built with wisdom, dedication, blood, sweat and tears. As one of the Eight Wonders in the world, the Great Wall of China has become the symbol of the Chinese nation and its culture.
The Great Wall of China is one of the biggest structures ever made by humans. The ancient Chinese built the wall to protect against invading armies. Today it is a tourist attraction and a symbol of China. One of the largest engineering and building projects ever carried out is the Great Wall of China.