因为匪夷所思的航海:
http://tieba.baidu.com/%C3%F7%B3%AF/tupian/list/%E6%98%8E%E6%9C%9D%E6%97%B6%E6%9C%9F%E6%B0%B4%E5%B8%88/view
郑和宝船与哥伦布航船的比较
http://tieba.baidu.com/%C3%F7%B3%AF/tupian/list/%E6%98%8E%E6%9C%9D%E6%97%B6%E6%9C%9F%E6%B0%B4%E5%B8%88/view
郑和宝船与哥伦布航船的比较