The architecture of the Colosseum originated from the theaters of ancient Greece. It is generally built on the hills and is semi-circular. It relies on the slope of the mountains to support the construction of layers. In 330 BC, because of the use of the arch vouchers, the viewing platform could be framed up and formed the current amphitheatre. It not only got rid of the support of the terrain, but also was very firm. The Roman period also invented concrete, which was sturdy and impervious, which made the Colosseum magnificent design and made this design still in use today. The Colosseum now has a wreckage to take pictures of tourists, but its architecture is one of the eight wonders of the world in history, it represents the highest level of ancient Roman architecture, in thousands of years Civilization plays an important role. It is worth knowing people deeply.