The Library of Alexandria is one of the oldest in the world. It contains manuscripts from 400 to 300 BC and has the richest collection of ancient books. The sun, which was once the civilized world of mankind, together with the Alexandria Lighthouse, is the highest representative of Alexandria's achievements. The library is now rebuilt. The main building is a cylinder, the top is a semicircular dome, and the conference hall is a pyramid. Like a sun, symbolizing the light of the world's culture. On the granite cultural wall on the periphery, the text, letters and symbols of the world's 50 oldest languages, including Chinese characters, highlight the idea and creativity of civilization and cultural atmosphere.