I was looking at a Chinese carriers website and noticed they serve tons of airports within China (the domestic network) Anyways, simply sparked my curiosity, is China a lot like the U.S. in terms of domestic traffic? Seems like they have a few different airlines, and several large airports...where as in most countries there's only a few large, or "gateway" airports if lucky, then often in some circumstances several more regional cities...I also have this feeling that aviation in China is regulated? So that is obviously a difference, what about Brazil, Australia? When I look at qantas' route map of Australia it doesn't look comparable to say United's over the U.S.. I would say Europe is very comparable, but the countries there are typically so small that you are flying international about every hour of flight time in a direction practically. Thanks for any info guys!