将下面的文本翻译成英文。
中国的长城是一道人造奇迹，它已经有两千多年的历史。长城是为了防止敌人入侵而建造的，尽管现在它已经不再用于防御目的，但它仍然是一个重要的旅游景点。
The Great Wall of China is a man-made wonder with a history of over 2,000 years. It was built to prevent enemy invasion, and although it is no longer used for defense purposes, it remains an important tourist attraction.