About China > china's world best Advanced Search E-Mail This Article Print Friendly Format China's World Best           Biggest Ancient Building Complex           The biggest and most complete ancient building complex is the former Imperial Palace (also known as the Forbidden City) in Beijing.           Longest Man-made Architecture           The longest man-made architecture in the world is the Great Wall in China. It climbs and descends on the ridges of mountains in northern China and has a total length of more than 6,700 kilometers.             Rarest Animal           The Giant Panda of China is one of the rarest animals in the world. Giant pandas live in remote high mountains in Sichuan, Shaanxi and Gansu Provinces and eat bamboo.           Oldest Tree           The oldest tree in the world is China's gingko, which first appeared during the Jurassic Age some 160 million years ago.            Greatest Canyon           The greatest canyon in the world is China's Brahmaputra Canyon, 504.6 kilometers long and 6,009 meters deep at its deepest spot. Its average depth is 2,268 meters.            Highest Plateau           The highest plateau in the world is China's Qinghai-Tibet Plateau with an average height of 4,500 meters above sea level.            Language With Largest Number of Speakers           The Chinese language is the language that has the largest number of speakers, more than 1.2 billion, throughout world.            Biggest and Earliest Encyclopedia           The biggest and earliest encyclopedia in the world is the Yongle Encyclopedia (Yongle Da Dian in Chinese), complied between 1403 and 1408 in the Ming Dynasty by more than 2,000 scholars. It consists of 22,937 volumes.           Largest Public Square           The largest public square in the world is Tian'anmen Square in Beijing. It covers an area of 40 hectares.The Tian'anmen Square found in the center of Beijing boasts the largest of its kind in the world.             Earliest and Longest Canal           The earliest and longest man-made canal in the world is the Beijing-Hangzhou Grand Canal. The canal was first built in the 5th century BC and was substantially extended twice during the Sui and Yuan dynasties.