The Alexandria Library was built in Ptolemy I Soter (about 367 BC-283 BC) and flourished in Ptolemy II and Ptolemy III. It is one of the oldest libraries in the world. The museum collects manuscripts from 400 BC to 300 BC, and has the richest collection of ancient books, which was once as famous as the Alexandria Lighthouse. Unfortunately, this world-famous center of ancient culture was completely swallowed up by the war at the end of the 3rd century. 1 Alexandria Library was once the sun of human civilization. Together with the Alexander Lighthouse, it is the highest representative of Alexander's achievements. This library was built in the 3rd century BC, but no one knows what it looks like. Modern people can only learn from the sporadic records of historical documents, because it doesn't even leave a stone object; And a lot of archaeological excavations seem to have no conclusive clues. Today's Alexandria Library stands on the old site of Ptolemy Library, overlooking the Gulf of Hester in the Mediterranean. Today, the main building of Alexandria Library is a cylinder with a semi-circular dome at the top and a pyramid-shaped conference hall. The ingenious combination of columns, pyramids and domes is natural, and the colorful geometric shapes outline the long history of the museum. Surprisingly, no matter from which point of view, the main building of Yatu is like a sunset, symbolizing the cultural light that shines on the world. The peripheral granite cultural wall is engraved with the words, letters and symbols of the world's oldest 50 languages, including Chinese characters, which shows the conception and creativity of civilization and cultural atmosphere.