China is a nation of gigantic proportions, historically, culturally, and geographically. It spans five time zones, and has a population of 1.4 billion, or 20% of the world's population.  By these figures, it is the most populous nation in the world. It's origins are shrouded in the mists of time, spanning back 6000 years, with it's dynasties beginning with some dispute around 4000 years ago.  It has the longest man-made object in the world, the Great Wall of China.  For more Chinese history and cool places to visit, check out the links below:
 
http://www.lonelyplanet.com/worldguide/china
http://www.mnsu.edu/emuseum/prehistory/china/index.html
 
Also check out these videos: Bodacious Beijing on Discover China / TAI SENG Entertainment and China Revealed /Discovery Atlas Video